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Manifest-Version: 1.0 Created-By: 1.6.0_24 (Sun Microsystems Inc.) Main-Class: javaUtilEx.juLinkedListCreateGetLast
/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* This class provides a skeletal implementation of the <tt>Collection</tt>
* interface, to minimize the effort required to implement this interface. <p>
*
* To implement an unmodifiable collection, the programmer needs only to
* extend this class and provide implementations for the <tt>iterator</tt> and
* <tt>size</tt> methods. (The iterator returned by the <tt>iterator</tt>
* method must implement <tt>hasNext</tt> and <tt>next</tt>.)<p>
*
* To implement a modifiable collection, the programmer must additionally
* override this class's <tt>add</tt> method (which otherwise throws an
* <tt>UnsupportedOperationException</tt>), and the iterator returned by the
* <tt>iterator</tt> method must additionally implement its <tt>remove</tt>
* method.<p>
*
* The programmer should generally provide a void (no argument) and
* <tt>Collection</tt> constructor, as per the recommendation in the
* <tt>Collection</tt> interface specification.<p>
*
* The documentation for each non-abstract method in this class describes its
* implementation in detail. Each of these methods may be overridden if
* the collection being implemented admits a more efficient implementation.<p>
*
* This class is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @author Neal Gafter
* @see Collection
* @since 1.2
*/

public abstract class AbstractCollection<E> implements Collection<E> {
/**
* Sole constructor. (For invocation by subclass constructors, typically
* implicit.)
*/
protected AbstractCollection() {
}

// Query Operations

/**
* Returns an iterator over the elements contained in this collection.
*
* @return an iterator over the elements contained in this collection
*/
public abstract Iterator<E> iterator();

public abstract int size();

/**
* {@inheritDoc}
*
* <p>This implementation returns <tt>size() == 0</tt>.
*/
public boolean isEmpty() {
return size() == 0;
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over the elements in the collection,
* checking each element in turn for equality with the specified element.
*
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*/
public boolean contains(Object o) {
Iterator<E> e = iterator();
if (o==null) {
while (e.hasNext())
if (e.next()==null)
return true;
} else {
while (e.hasNext())
if (o.equals(e.next()))
return true;
}
return false;
}

// Modification Operations

/**
* {@inheritDoc}
*
* <p>This implementation always throws an
* <tt>UnsupportedOperationException</tt>.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IllegalStateException {@inheritDoc}
*/
public boolean add(E e) {
throw new UnsupportedOperationException();
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over the collection looking for the
* specified element. If it finds the element, it removes the element
* from the collection using the iterator's remove method.
*
* <p>Note that this implementation throws an
* <tt>UnsupportedOperationException</tt> if the iterator returned by this
* collection's iterator method does not implement the <tt>remove</tt>
* method and this collection contains the specified object.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*/
public boolean remove(Object o) {
Iterator<E> e = iterator();
if (o==null) {
while (e.hasNext()) {
if (e.next()==null) {
e.remove();
return true;
}
}
} else {
while (e.hasNext()) {
if (o.equals(e.next())) {
e.remove();
return true;
}
}
}
return false;
}


// Bulk Operations

/**
* {@inheritDoc}
*
* <p>This implementation iterates over the specified collection,
* checking each element returned by the iterator in turn to see
* if it's contained in this collection. If all elements are so
* contained <tt>true</tt> is returned, otherwise <tt>false</tt>.
*
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @see #contains(Object)
*/
public boolean containsAll(Collection<?> c) {
Iterator<?> e = c.iterator();
while (e.hasNext())
if (!contains(e.next()))
return false;
return true;
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over the specified collection, and adds
* each object returned by the iterator to this collection, in turn.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> unless <tt>add</tt> is
* overridden (assuming the specified collection is non-empty).
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IllegalStateException {@inheritDoc}
*
* @see #add(Object)
*/
public boolean addAll(Collection<? extends E> c) {
boolean modified = false;
Iterator<? extends E> e = c.iterator();
while (e.hasNext()) {
if (add(e.next()))
modified = true;
}
return modified;
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over this collection, checking each
* element returned by the iterator in turn to see if it's contained
* in the specified collection. If it's so contained, it's removed from
* this collection with the iterator's <tt>remove</tt> method.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the iterator returned by the
* <tt>iterator</tt> method does not implement the <tt>remove</tt> method
* and this collection contains one or more elements in common with the
* specified collection.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*
* @see #remove(Object)
* @see #contains(Object)
*/
public boolean removeAll(Collection<?> c) {
boolean modified = false;
Iterator<?> e = iterator();
while (e.hasNext()) {
if (c.contains(e.next())) {
e.remove();
modified = true;
}
}
return modified;
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over this collection, checking each
* element returned by the iterator in turn to see if it's contained
* in the specified collection. If it's not so contained, it's removed
* from this collection with the iterator's <tt>remove</tt> method.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the iterator returned by the
* <tt>iterator</tt> method does not implement the <tt>remove</tt> method
* and this collection contains one or more elements not present in the
* specified collection.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*
* @see #remove(Object)
* @see #contains(Object)
*/
public boolean retainAll(Collection<?> c) {
boolean modified = false;
Iterator<E> e = iterator();
while (e.hasNext()) {
if (!c.contains(e.next())) {
e.remove();
modified = true;
}
}
return modified;
}

/**
* {@inheritDoc}
*
* <p>This implementation iterates over this collection, removing each
* element using the <tt>Iterator.remove</tt> operation. Most
* implementations will probably choose to override this method for
* efficiency.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the iterator returned by this
* collection's <tt>iterator</tt> method does not implement the
* <tt>remove</tt> method and this collection is non-empty.
*
* @throws UnsupportedOperationException {@inheritDoc}
*/
public void clear() {
Iterator<E> e = iterator();
while (e.hasNext()) {
e.next();
e.remove();
}
}


// String conversion

/**
* Returns a string representation of this collection. The string
* representation consists of a list of the collection's elements in the
* order they are returned by its iterator, enclosed in square brackets
* (<tt>"[]"</tt>). Adjacent elements are separated by the characters
* <tt>", "</tt> (comma and space). Elements are converted to strings as
* by {@link String#valueOf(Object)}.
*
* @return a string representation of this collection
*/
public String toString() {
Iterator<E> i = iterator();
if (! i.hasNext())
return "[]";

String sb = "";
sb = sb + "[";
for (;;) {
E e = i.next();
sb = sb + (e == this ? "(this Collection)" : e);
if (! i.hasNext()) {
sb = sb + "]";
return sb;
}
sb = sb + ", ";
}
}

}


/*
* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* This class provides a skeletal implementation of the {@link List}
* interface to minimize the effort required to implement this interface
* backed by a "random access" data store (such as an array). For sequential
* access data (such as a linked list), {@link AbstractSequentialList} should
* be used in preference to this class.
*
* <p>To implement an unmodifiable list, the programmer needs only to extend
* this class and provide implementations for the {@link #get(int)} and
* {@link List#size() size()} methods.
*
* <p>To implement a modifiable list, the programmer must additionally
* override the {@link #set(int, Object) set(int, E)} method (which otherwise
* throws an {@code UnsupportedOperationException}). If the list is
* variable-size the programmer must additionally override the
* {@link #add(int, Object) add(int, E)} and {@link #remove(int)} methods.
*
* <p>The programmer should generally provide a void (no argument) and collection
* constructor, as per the recommendation in the {@link Collection} interface
* specification.
*
* <p>Unlike the other abstract collection implementations, the programmer does
* <i>not</i> have to provide an iterator implementation; the iterator and
* list iterator are implemented by this class, on top of the "random access"
* methods:
* {@link #get(int)},
* {@link #set(int, Object) set(int, E)},
* {@link #add(int, Object) add(int, E)} and
* {@link #remove(int)}.
*
* <p>The documentation for each non-abstract method in this class describes its
* implementation in detail. Each of these methods may be overridden if the
* collection being implemented admits a more efficient implementation.
*
* <p>This class is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @author Neal Gafter
* @since 1.2
*/

public abstract class AbstractList<E> extends AbstractCollection<E> implements List<E> {
/**
* Sole constructor. (For invocation by subclass constructors, typically
* implicit.)
*/
protected AbstractList() {
}

/**
* Appends the specified element to the end of this list (optional
* operation).
*
* <p>Lists that support this operation may place limitations on what
* elements may be added to this list. In particular, some
* lists will refuse to add null elements, and others will impose
* restrictions on the type of elements that may be added. List
* classes should clearly specify in their documentation any restrictions
* on what elements may be added.
*
* <p>This implementation calls {@code add(size(), e)}.
*
* <p>Note that this implementation throws an
* {@code UnsupportedOperationException} unless
* {@link #add(int, Object) add(int, E)} is overridden.
*
* @param e element to be appended to this list
* @return {@code true} (as specified by {@link Collection#add})
* @throws UnsupportedOperationException if the {@code add} operation
* is not supported by this list
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements
* @throws IllegalArgumentException if some property of this element
* prevents it from being added to this list
*/
public boolean add(E e) {
add(size(), e);
return true;
}

/**
* {@inheritDoc}
*
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
abstract public E get(int index);

/**
* {@inheritDoc}
*
* <p>This implementation always throws an
* {@code UnsupportedOperationException}.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E set(int index, E element) {
throw new UnsupportedOperationException();
}

/**
* {@inheritDoc}
*
* <p>This implementation always throws an
* {@code UnsupportedOperationException}.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public void add(int index, E element) {
throw new UnsupportedOperationException();
}

/**
* {@inheritDoc}
*
* <p>This implementation always throws an
* {@code UnsupportedOperationException}.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E remove(int index) {
throw new UnsupportedOperationException();
}


// Search Operations

/**
* {@inheritDoc}
*
* <p>This implementation first gets a list iterator (with
* {@code listIterator()}). Then, it iterates over the list until the
* specified element is found or the end of the list is reached.
*
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*/
public int indexOf(Object o) {
ListIterator<E> e = listIterator();
if (o==null) {
while (e.hasNext())
if (e.next()==null)
return e.previousIndex();
} else {
while (e.hasNext())
if (o.equals(e.next()))
return e.previousIndex();
}
return -1;
}

/**
* {@inheritDoc}
*
* <p>This implementation first gets a list iterator that points to the end
* of the list (with {@code listIterator(size())}). Then, it iterates
* backwards over the list until the specified element is found, or the
* beginning of the list is reached.
*
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
*/
public int lastIndexOf(Object o) {
ListIterator<E> e = listIterator(size());
if (o==null) {
while (e.hasPrevious())
if (e.previous()==null)
return e.nextIndex();
} else {
while (e.hasPrevious())
if (o.equals(e.previous()))
return e.nextIndex();
}
return -1;
}


// Bulk Operations

/**
* Removes all of the elements from this list (optional operation).
* The list will be empty after this call returns.
*
* <p>This implementation calls {@code removeRange(0, size())}.
*
* <p>Note that this implementation throws an
* {@code UnsupportedOperationException} unless {@code remove(int
* index)} or {@code removeRange(int fromIndex, int toIndex)} is
* overridden.
*
* @throws UnsupportedOperationException if the {@code clear} operation
* is not supported by this list
*/
public void clear() {
removeRange(0, size());
}

/**
* {@inheritDoc}
*
* <p>This implementation gets an iterator over the specified collection
* and iterates over it, inserting the elements obtained from the
* iterator into this list at the appropriate position, one at a time,
* using {@code add(int, E)}.
* Many implementations will override this method for efficiency.
*
* <p>Note that this implementation throws an
* {@code UnsupportedOperationException} unless
* {@link #add(int, Object) add(int, E)} is overridden.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public boolean addAll(int index, Collection<? extends E> c) {
rangeCheckForAdd(index);
boolean modified = false;
Iterator<? extends E> e = c.iterator();
while (e.hasNext()) {
add(index++, e.next());
modified = true;
}
return modified;
}


// Iterators

/**
* Returns an iterator over the elements in this list in proper sequence.
*
* <p>This implementation returns a straightforward implementation of the
* iterator interface, relying on the backing list's {@code size()},
* {@code get(int)}, and {@code remove(int)} methods.
*
* <p>Note that the iterator returned by this method will throw an
* {@link UnsupportedOperationException} in response to its
* {@code remove} method unless the list's {@code remove(int)} method is
* overridden.
*
* <p>This implementation can be made to throw runtime exceptions in the
* face of concurrent modification, as described in the specification
* for the (protected) {@link #modCount} field.
*
* @return an iterator over the elements in this list in proper sequence
*/
public Iterator<E> iterator() {
return new Itr();
}

/**
* {@inheritDoc}
*
* <p>This implementation returns {@code listIterator(0)}.
*
* @see #listIterator(int)
*/
public ListIterator<E> listIterator() {
return listIterator(0);
}

/**
* {@inheritDoc}
*
* <p>This implementation returns a straightforward implementation of the
* {@code ListIterator} interface that extends the implementation of the
* {@code Iterator} interface returned by the {@code iterator()} method.
* The {@code ListIterator} implementation relies on the backing list's
* {@code get(int)}, {@code set(int, E)}, {@code add(int, E)}
* and {@code remove(int)} methods.
*
* <p>Note that the list iterator returned by this implementation will
* throw an {@link UnsupportedOperationException} in response to its
* {@code remove}, {@code set} and {@code add} methods unless the
* list's {@code remove(int)}, {@code set(int, E)}, and
* {@code add(int, E)} methods are overridden.
*
* <p>This implementation can be made to throw runtime exceptions in the
* face of concurrent modification, as described in the specification for
* the (protected) {@link #modCount} field.
*
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public ListIterator<E> listIterator(final int index) {
rangeCheckForAdd(index);

return new ListItr(index);
}

private class Itr implements Iterator<E> {
/**
* Index of element to be returned by subsequent call to next.
*/
int cursor = 0;

/**
* Index of element returned by most recent call to next or
* previous. Reset to -1 if this element is deleted by a call
* to remove.
*/
int lastRet = -1;

/**
* The modCount value that the iterator believes that the backing
* List should have. If this expectation is violated, the iterator
* has detected concurrent modification.
*/
int expectedModCount = modCount;

public boolean hasNext() {
return cursor != size();
}

public E next() {
checkForComodification();
try {
int i = cursor;
E next = get(i);
lastRet = i;
cursor = i + 1;
return next;
} catch (IndexOutOfBoundsException e) {
checkForComodification();
throw new NoSuchElementException();
}
}

public void remove() {
if (lastRet < 0)
throw new IllegalStateException();
checkForComodification();

try {
AbstractList.this.remove(lastRet);
if (lastRet < cursor)
cursor--;
lastRet = -1;
expectedModCount = modCount;
} catch (IndexOutOfBoundsException e) {
throw new ConcurrentModificationException();
}
}

final void checkForComodification() {
if (modCount != expectedModCount)
throw new ConcurrentModificationException();
}
}

private class ListItr extends Itr implements ListIterator<E> {
ListItr(int index) {
cursor = index;
}

public boolean hasPrevious() {
return cursor != 0;
}

public E previous() {
checkForComodification();
try {
int i = cursor - 1;
E previous = get(i);
lastRet = cursor = i;
return previous;
} catch (IndexOutOfBoundsException e) {
checkForComodification();
throw new NoSuchElementException();
}
}

public int nextIndex() {
return cursor;
}

public int previousIndex() {
return cursor-1;
}

public void set(E e) {
if (lastRet < 0)
throw new IllegalStateException();
checkForComodification();

try {
AbstractList.this.set(lastRet, e);
expectedModCount = modCount;
} catch (IndexOutOfBoundsException ex) {
throw new ConcurrentModificationException();
}
}

public void add(E e) {
checkForComodification();

try {
int i = cursor;
AbstractList.this.add(i, e);
lastRet = -1;
cursor = i + 1;
expectedModCount = modCount;
} catch (IndexOutOfBoundsException ex) {
throw new ConcurrentModificationException();
}
}
}

/**
* {@inheritDoc}
*
* <p>This implementation returns a list that subclasses
* {@code AbstractList}. The subclass stores, in private fields, the
* offset of the subList within the backing list, the size of the subList
* (which can change over its lifetime), and the expected
* {@code modCount} value of the backing list. There are two variants
* of the subclass, one of which implements {@code RandomAccess}.
* If this list implements {@code RandomAccess} the returned list will
* be an instance of the subclass that implements {@code RandomAccess}.
*
* <p>The subclass's {@code set(int, E)}, {@code get(int)},
* {@code add(int, E)}, {@code remove(int)}, {@code addAll(int,
* Collection)} and {@code removeRange(int, int)} methods all
* delegate to the corresponding methods on the backing abstract list,
* after bounds-checking the index and adjusting for the offset. The
* {@code addAll(Collection c)} method merely returns {@code addAll(size,
* c)}.
*
* <p>The {@code listIterator(int)} method returns a "wrapper object"
* over a list iterator on the backing list, which is created with the
* corresponding method on the backing list. The {@code iterator} method
* merely returns {@code listIterator()}, and the {@code size} method
* merely returns the subclass's {@code size} field.
*
* <p>All methods first check to see if the actual {@code modCount} of
* the backing list is equal to its expected value, and throw a
* {@code ConcurrentModificationException} if it is not.
*
* @throws IndexOutOfBoundsException if an endpoint index value is out of range
* {@code (fromIndex < 0 || toIndex > size)}
* @throws IllegalArgumentException if the endpoint indices are out of order
* {@code (fromIndex > toIndex)}
*/
public List<E> subList(int fromIndex, int toIndex) {
return (this instanceof RandomAccess ?
new RandomAccessSubList<E>(this, fromIndex, toIndex) :
new SubList<E>(this, fromIndex, toIndex));
}

// Comparison and hashing

/**
* Compares the specified object with this list for equality. Returns
* {@code true} if and only if the specified object is also a list, both
* lists have the same size, and all corresponding pairs of elements in
* the two lists are <i>equal</i>. (Two elements {@code e1} and
* {@code e2} are <i>equal</i> if {@code (e1==null ? e2==null :
* e1.equals(e2))}.) In other words, two lists are defined to be
* equal if they contain the same elements in the same order.<p>
*
* This implementation first checks if the specified object is this
* list. If so, it returns {@code true}; if not, it checks if the
* specified object is a list. If not, it returns {@code false}; if so,
* it iterates over both lists, comparing corresponding pairs of elements.
* If any comparison returns {@code false}, this method returns
* {@code false}. If either iterator runs out of elements before the
* other it returns {@code false} (as the lists are of unequal length);
* otherwise it returns {@code true} when the iterations complete.
*
* @param o the object to be compared for equality with this list
* @return {@code true} if the specified object is equal to this list
*/
public boolean equals(Object o) {
if (o == this)
return true;
if (!(o instanceof List))
return false;

ListIterator<E> e1 = listIterator();
ListIterator e2 = ((List) o).listIterator();
while(e1.hasNext() && e2.hasNext()) {
E o1 = e1.next();
Object o2 = e2.next();
if (!(o1==null ? o2==null : o1.equals(o2)))
return false;
}
return !(e1.hasNext() || e2.hasNext());
}

/**
* Returns the hash code value for this list.
*
* <p>This implementation uses exactly the code that is used to define the
* list hash function in the documentation for the {@link List#hashCode}
* method.
*
* @return the hash code value for this list
*/
public int hashCode() {
int hashCode = 1;
Iterator<E> it = this.iterator();
while (it.hasNext()) {
E e = it.next();
hashCode = 31*hashCode + (e==null ? 0 : e.hashCode());
}
return hashCode;
}

/**
* Removes from this list all of the elements whose index is between
* {@code fromIndex}, inclusive, and {@code toIndex}, exclusive.
* Shifts any succeeding elements to the left (reduces their index).
* This call shortens the list by {@code (toIndex - fromIndex)} elements.
* (If {@code toIndex==fromIndex}, this operation has no effect.)
*
* <p>This method is called by the {@code clear} operation on this list
* and its subLists. Overriding this method to take advantage of
* the internals of the list implementation can <i>substantially</i>
* improve the performance of the {@code clear} operation on this list
* and its subLists.
*
* <p>This implementation gets a list iterator positioned before
* {@code fromIndex}, and repeatedly calls {@code ListIterator.next}
* followed by {@code ListIterator.remove} until the entire range has
* been removed. <b>Note: if {@code ListIterator.remove} requires linear
* time, this implementation requires quadratic time.</b>
*
* @param fromIndex index of first element to be removed
* @param toIndex index after last element to be removed
*/
protected void removeRange(int fromIndex, int toIndex) {
ListIterator<E> it = listIterator(fromIndex);
for (int i=0, n=toIndex-fromIndex; i<n; i++) {
it.next();
it.remove();
}
}

/**
* The number of times this list has been <i>structurally modified</i>.
* Structural modifications are those that change the size of the
* list, or otherwise perturb it in such a fashion that iterations in
* progress may yield incorrect results.
*
* <p>This field is used by the iterator and list iterator implementation
* returned by the {@code iterator} and {@code listIterator} methods.
* If the value of this field changes unexpectedly, the iterator (or list
* iterator) will throw a {@code ConcurrentModificationException} in
* response to the {@code next}, {@code remove}, {@code previous},
* {@code set} or {@code add} operations. This provides
* <i>fail-fast</i> behavior, rather than non-deterministic behavior in
* the face of concurrent modification during iteration.
*
* <p><b>Use of this field by subclasses is optional.</b> If a subclass
* wishes to provide fail-fast iterators (and list iterators), then it
* merely has to increment this field in its {@code add(int, E)} and
* {@code remove(int)} methods (and any other methods that it overrides
* that result in structural modifications to the list). A single call to
* {@code add(int, E)} or {@code remove(int)} must add no more than
* one to this field, or the iterators (and list iterators) will throw
* bogus {@code ConcurrentModificationExceptions}. If an implementation
* does not wish to provide fail-fast iterators, this field may be
* ignored.
*/
protected transient int modCount = 0;

private void rangeCheckForAdd(int index) {
if (index < 0 || index > size())
throw new IndexOutOfBoundsException(outOfBoundsMsg(index));
}

private String outOfBoundsMsg(int index) {
return "";
}
}

class SubList<E> extends AbstractList<E> {
private final AbstractList<E> l;
private final int offset;
private int size;

SubList(AbstractList<E> list, int fromIndex, int toIndex) {
if (fromIndex < 0)
throw new IndexOutOfBoundsException();
if (toIndex > list.size())
throw new IndexOutOfBoundsException();
if (fromIndex > toIndex)
throw new IllegalArgumentException();
l = list;
offset = fromIndex;
size = toIndex - fromIndex;
this.modCount = l.modCount;
}

public E set(int index, E element) {
rangeCheck(index);
checkForComodification();
return l.set(index+offset, element);
}

public E get(int index) {
rangeCheck(index);
checkForComodification();
return l.get(index+offset);
}

public int size() {
checkForComodification();
return size;
}

public void add(int index, E element) {
rangeCheckForAdd(index);
checkForComodification();
l.add(index+offset, element);
this.modCount = l.modCount;
size++;
}

public E remove(int index) {
rangeCheck(index);
checkForComodification();
E result = l.remove(index+offset);
this.modCount = l.modCount;
size--;
return result;
}

protected void removeRange(int fromIndex, int toIndex) {
checkForComodification();
l.removeRange(fromIndex+offset, toIndex+offset);
this.modCount = l.modCount;
size -= (toIndex-fromIndex);
}

public boolean addAll(Collection<? extends E> c) {
return addAll(size, c);
}

public boolean addAll(int index, Collection<? extends E> c) {
rangeCheckForAdd(index);
int cSize = c.size();
if (cSize==0)
return false;

checkForComodification();
l.addAll(offset+index, c);
this.modCount = l.modCount;
size += cSize;
return true;
}

public Iterator<E> iterator() {
return listIterator();
}

public ListIterator<E> listIterator(final int index) {
checkForComodification();
rangeCheckForAdd(index);

return new ListIterator<E>() {
private final ListIterator<E> i = l.listIterator(index+offset);

public boolean hasNext() {
return nextIndex() < size;
}

public E next() {
if (hasNext())
return i.next();
else
throw new NoSuchElementException();
}

public boolean hasPrevious() {
return previousIndex() >= 0;
}

public E previous() {
if (hasPrevious())
return i.previous();
else
throw new NoSuchElementException();
}

public int nextIndex() {
return i.nextIndex() - offset;
}

public int previousIndex() {
return i.previousIndex() - offset;
}

public void remove() {
i.remove();
SubList.this.modCount = l.modCount;
size--;
}

public void set(E e) {
i.set(e);
}

public void add(E e) {
i.add(e);
SubList.this.modCount = l.modCount;
size++;
}
};
}

public List<E> subList(int fromIndex, int toIndex) {
return new SubList<E>(this, fromIndex, toIndex);
}

private void rangeCheck(int index) {
if (index < 0 || index >= size)
throw new IndexOutOfBoundsException(outOfBoundsMsg(index));
}

private void rangeCheckForAdd(int index) {
if (index < 0 || index > size)
throw new IndexOutOfBoundsException(outOfBoundsMsg(index));
}

private String outOfBoundsMsg(int index) {
return "";
}

private void checkForComodification() {
if (this.modCount != l.modCount)
throw new ConcurrentModificationException();
}
}

class RandomAccessSubList<E> extends SubList<E> implements RandomAccess {
RandomAccessSubList(AbstractList<E> list, int fromIndex, int toIndex) {
super(list, fromIndex, toIndex);
}

public List<E> subList(int fromIndex, int toIndex) {
return new RandomAccessSubList<E>(this, fromIndex, toIndex);
}
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* This class provides a skeletal implementation of the <tt>List</tt>
* interface to minimize the effort required to implement this interface
* backed by a "sequential access" data store (such as a linked list). For
* random access data (such as an array), <tt>AbstractList</tt> should be used
* in preference to this class.<p>
*
* This class is the opposite of the <tt>AbstractList</tt> class in the sense
* that it implements the "random access" methods (<tt>get(int index)</tt>,
* <tt>set(int index, E element)</tt>, <tt>add(int index, E element)</tt> and
* <tt>remove(int index)</tt>) on top of the list's list iterator, instead of
* the other way around.<p>
*
* To implement a list the programmer needs only to extend this class and
* provide implementations for the <tt>listIterator</tt> and <tt>size</tt>
* methods. For an unmodifiable list, the programmer need only implement the
* list iterator's <tt>hasNext</tt>, <tt>next</tt>, <tt>hasPrevious</tt>,
* <tt>previous</tt> and <tt>index</tt> methods.<p>
*
* For a modifiable list the programmer should additionally implement the list
* iterator's <tt>set</tt> method. For a variable-size list the programmer
* should additionally implement the list iterator's <tt>remove</tt> and
* <tt>add</tt> methods.<p>
*
* The programmer should generally provide a void (no argument) and collection
* constructor, as per the recommendation in the <tt>Collection</tt> interface
* specification.<p>
*
* This class is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @author Neal Gafter
* @see Collection
* @see List
* @see AbstractList
* @see AbstractCollection
* @since 1.2
*/

public abstract class AbstractSequentialList<E> extends AbstractList<E> {
/**
* Sole constructor. (For invocation by subclass constructors, typically
* implicit.)
*/
protected AbstractSequentialList() {
}

/**
* Returns the element at the specified position in this list.
*
* <p>This implementation first gets a list iterator pointing to the
* indexed element (with <tt>listIterator(index)</tt>). Then, it gets
* the element using <tt>ListIterator.next</tt> and returns it.
*
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E get(int index) {
try {
return listIterator(index).next();
} catch (NoSuchElementException exc) {
throw new IndexOutOfBoundsException();
}
}

/**
* Replaces the element at the specified position in this list with the
* specified element (optional operation).
*
* <p>This implementation first gets a list iterator pointing to the
* indexed element (with <tt>listIterator(index)</tt>). Then, it gets
* the current element using <tt>ListIterator.next</tt> and replaces it
* with <tt>ListIterator.set</tt>.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the list iterator does not
* implement the <tt>set</tt> operation.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E set(int index, E element) {
try {
ListIterator<E> e = listIterator(index);
E oldVal = e.next();
e.set(element);
return oldVal;
} catch (NoSuchElementException exc) {
throw new IndexOutOfBoundsException();
}
}

/**
* Inserts the specified element at the specified position in this list
* (optional operation). Shifts the element currently at that position
* (if any) and any subsequent elements to the right (adds one to their
* indices).
*
* <p>This implementation first gets a list iterator pointing to the
* indexed element (with <tt>listIterator(index)</tt>). Then, it
* inserts the specified element with <tt>ListIterator.add</tt>.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the list iterator does not
* implement the <tt>add</tt> operation.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public void add(int index, E element) {
try {
listIterator(index).add(element);
} catch (NoSuchElementException exc) {
throw new IndexOutOfBoundsException();
}
}

/**
* Removes the element at the specified position in this list (optional
* operation). Shifts any subsequent elements to the left (subtracts one
* from their indices). Returns the element that was removed from the
* list.
*
* <p>This implementation first gets a list iterator pointing to the
* indexed element (with <tt>listIterator(index)</tt>). Then, it removes
* the element with <tt>ListIterator.remove</tt>.
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the list iterator does not
* implement the <tt>remove</tt> operation.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E remove(int index) {
try {
ListIterator<E> e = listIterator(index);
E outCast = e.next();
e.remove();
return outCast;
} catch (NoSuchElementException exc) {
throw new IndexOutOfBoundsException();
}
}


// Bulk Operations

/**
* Inserts all of the elements in the specified collection into this
* list at the specified position (optional operation). Shifts the
* element currently at that position (if any) and any subsequent
* elements to the right (increases their indices). The new elements
* will appear in this list in the order that they are returned by the
* specified collection's iterator. The behavior of this operation is
* undefined if the specified collection is modified while the
* operation is in progress. (Note that this will occur if the specified
* collection is this list, and it's nonempty.)
*
* <p>This implementation gets an iterator over the specified collection and
* a list iterator over this list pointing to the indexed element (with
* <tt>listIterator(index)</tt>). Then, it iterates over the specified
* collection, inserting the elements obtained from the iterator into this
* list, one at a time, using <tt>ListIterator.add</tt> followed by
* <tt>ListIterator.next</tt> (to skip over the added element).
*
* <p>Note that this implementation will throw an
* <tt>UnsupportedOperationException</tt> if the list iterator returned by
* the <tt>listIterator</tt> method does not implement the <tt>add</tt>
* operation.
*
* @throws UnsupportedOperationException {@inheritDoc}
* @throws ClassCastException {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public boolean addAll(int index, Collection<? extends E> c) {
try {
boolean modified = false;
ListIterator<E> e1 = listIterator(index);
Iterator<? extends E> e2 = c.iterator();
while (e2.hasNext()) {
e1.add(e2.next());
modified = true;
}
return modified;
} catch (NoSuchElementException exc) {
throw new IndexOutOfBoundsException();
}
}


// Iterators

/**
* Returns an iterator over the elements in this list (in proper
* sequence).<p>
*
* This implementation merely returns a list iterator over the list.
*
* @return an iterator over the elements in this list (in proper sequence)
*/
public Iterator<E> iterator() {
return listIterator();
}

/**
* Returns a list iterator over the elements in this list (in proper
* sequence).
*
* @param index index of first element to be returned from the list
* iterator (by a call to the <code>next</code> method)
* @return a list iterator over the elements in this list (in proper
* sequence)
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public abstract ListIterator<E> listIterator(int index);
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* The root interface in the <i>collection hierarchy</i>. A collection
* represents a group of objects, known as its <i>elements</i>. Some
* collections allow duplicate elements and others do not. Some are ordered
* and others unordered. The JDK does not provide any <i>direct</i>
* implementations of this interface: it provides implementations of more
* specific subinterfaces like <tt>Set</tt> and <tt>List</tt>. This interface
* is typically used to pass collections around and manipulate them where
* maximum generality is desired.
*
* <p><i>Bags</i> or <i>multisets</i> (unordered collections that may contain
* duplicate elements) should implement this interface directly.
*
* <p>All general-purpose <tt>Collection</tt> implementation classes (which
* typically implement <tt>Collection</tt> indirectly through one of its
* subinterfaces) should provide two "standard" constructors: a void (no
* arguments) constructor, which creates an empty collection, and a
* constructor with a single argument of type <tt>Collection</tt>, which
* creates a new collection with the same elements as its argument. In
* effect, the latter constructor allows the user to copy any collection,
* producing an equivalent collection of the desired implementation type.
* There is no way to enforce this convention (as interfaces cannot contain
* constructors) but all of the general-purpose <tt>Collection</tt>
* implementations in the Java platform libraries comply.
*
* <p>The "destructive" methods contained in this interface, that is, the
* methods that modify the collection on which they operate, are specified to
* throw <tt>UnsupportedOperationException</tt> if this collection does not
* support the operation. If this is the case, these methods may, but are not
* required to, throw an <tt>UnsupportedOperationException</tt> if the
* invocation would have no effect on the collection. For example, invoking
* the {@link #addAll(Collection)} method on an unmodifiable collection may,
* but is not required to, throw the exception if the collection to be added
* is empty.
*
* <p>Some collection implementations have restrictions on the elements that
* they may contain. For example, some implementations prohibit null elements,
* and some have restrictions on the types of their elements. Attempting to
* add an ineligible element throws an unchecked exception, typically
* <tt>NullPointerException</tt> or <tt>ClassCastException</tt>. Attempting
* to query the presence of an ineligible element may throw an exception,
* or it may simply return false; some implementations will exhibit the former
* behavior and some will exhibit the latter. More generally, attempting an
* operation on an ineligible element whose completion would not result in
* the insertion of an ineligible element into the collection may throw an
* exception or it may succeed, at the option of the implementation.
* Such exceptions are marked as "optional" in the specification for this
* interface.
*
* <p>It is up to each collection to determine its own synchronization
* policy. In the absence of a stronger guarantee by the
* implementation, undefined behavior may result from the invocation
* of any method on a collection that is being mutated by another
* thread; this includes direct invocations, passing the collection to
* a method that might perform invocations, and using an existing
* iterator to examine the collection.
*
* <p>Many methods in Collections Framework interfaces are defined in
* terms of the {@link Object#equals(Object) equals} method. For example,
* the specification for the {@link #contains(Object) contains(Object o)}
* method says: "returns <tt>true</tt> if and only if this collection
* contains at least one element <tt>e</tt> such that
* <tt>(o==null ? e==null : o.equals(e))</tt>." This specification should
* <i>not</i> be construed to imply that invoking <tt>Collection.contains</tt>
* with a non-null argument <tt>o</tt> will cause <tt>o.equals(e)</tt> to be
* invoked for any element <tt>e</tt>. Implementations are free to implement
* optimizations whereby the <tt>equals</tt> invocation is avoided, for
* example, by first comparing the hash codes of the two elements. (The
* {@link Object#hashCode()} specification guarantees that two objects with
* unequal hash codes cannot be equal.) More generally, implementations of
* the various Collections Framework interfaces are free to take advantage of
* the specified behavior of underlying {@link Object} methods wherever the
* implementor deems it appropriate.
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @author Neal Gafter
* @see Set
* @see List
* @see Map
* @see SortedSet
* @see SortedMap
* @see HashSet
* @see TreeSet
* @see ArrayList
* @see LinkedList
* @see Vector
* @see Collections
* @see Arrays
* @see AbstractCollection
* @since 1.2
*/

public interface Collection<E> {
// Query Operations

/**
* Returns the number of elements in this collection. If this collection
* contains more than <tt>Integer.MAX_VALUE</tt> elements, returns
* <tt>Integer.MAX_VALUE</tt>.
*
* @return the number of elements in this collection
*/
int size();

/**
* Returns <tt>true</tt> if this collection contains no elements.
*
* @return <tt>true</tt> if this collection contains no elements
*/
boolean isEmpty();

/**
* Returns <tt>true</tt> if this collection contains the specified element.
* More formally, returns <tt>true</tt> if and only if this collection
* contains at least one element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
*
* @param o element whose presence in this collection is to be tested
* @return <tt>true</tt> if this collection contains the specified
* element
* @throws ClassCastException if the type of the specified element
* is incompatible with this collection (optional)
* @throws NullPointerException if the specified element is null and this
* collection does not permit null elements (optional)
*/
boolean contains(Object o);

/**
* Returns an iterator over the elements in this collection. There are no
* guarantees concerning the order in which the elements are returned
* (unless this collection is an instance of some class that provides a
* guarantee).
*
* @return an <tt>Iterator</tt> over the elements in this collection
*/
Iterator<E> iterator();

// Modification Operations

/**
* Ensures that this collection contains the specified element (optional
* operation). Returns <tt>true</tt> if this collection changed as a
* result of the call. (Returns <tt>false</tt> if this collection does
* not permit duplicates and already contains the specified element.)<p>
*
* Collections that support this operation may place limitations on what
* elements may be added to this collection. In particular, some
* collections will refuse to add <tt>null</tt> elements, and others will
* impose restrictions on the type of elements that may be added.
* Collection classes should clearly specify in their documentation any
* restrictions on what elements may be added.<p>
*
* If a collection refuses to add a particular element for any reason
* other than that it already contains the element, it <i>must</i> throw
* an exception (rather than returning <tt>false</tt>). This preserves
* the invariant that a collection always contains the specified element
* after this call returns.
*
* @param e element whose presence in this collection is to be ensured
* @return <tt>true</tt> if this collection changed as a result of the
* call
* @throws UnsupportedOperationException if the <tt>add</tt> operation
* is not supported by this collection
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this collection
* @throws NullPointerException if the specified element is null and this
* collection does not permit null elements
* @throws IllegalArgumentException if some property of the element
* prevents it from being added to this collection
* @throws IllegalStateException if the element cannot be added at this
* time due to insertion restrictions
*/
boolean add(E e);

/**
* Removes a single instance of the specified element from this
* collection, if it is present (optional operation). More formally,
* removes an element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>, if
* this collection contains one or more such elements. Returns
* <tt>true</tt> if this collection contained the specified element (or
* equivalently, if this collection changed as a result of the call).
*
* @param o element to be removed from this collection, if present
* @return <tt>true</tt> if an element was removed as a result of this call
* @throws ClassCastException if the type of the specified element
* is incompatible with this collection (optional)
* @throws NullPointerException if the specified element is null and this
* collection does not permit null elements (optional)
* @throws UnsupportedOperationException if the <tt>remove</tt> operation
* is not supported by this collection
*/
boolean remove(Object o);


// Bulk Operations

/**
* Returns <tt>true</tt> if this collection contains all of the elements
* in the specified collection.
*
* @param c collection to be checked for containment in this collection
* @return <tt>true</tt> if this collection contains all of the elements
* in the specified collection
* @throws ClassCastException if the types of one or more elements
* in the specified collection are incompatible with this
* collection (optional)
* @throws NullPointerException if the specified collection contains one
* or more null elements and this collection does not permit null
* elements (optional), or if the specified collection is null
* @see #contains(Object)
*/
boolean containsAll(Collection<?> c);

/**
* Adds all of the elements in the specified collection to this collection
* (optional operation). The behavior of this operation is undefined if
* the specified collection is modified while the operation is in progress.
* (This implies that the behavior of this call is undefined if the
* specified collection is this collection, and this collection is
* nonempty.)
*
* @param c collection containing elements to be added to this collection
* @return <tt>true</tt> if this collection changed as a result of the call
* @throws UnsupportedOperationException if the <tt>addAll</tt> operation
* is not supported by this collection
* @throws ClassCastException if the class of an element of the specified
* collection prevents it from being added to this collection
* @throws NullPointerException if the specified collection contains a
* null element and this collection does not permit null elements,
* or if the specified collection is null
* @throws IllegalArgumentException if some property of an element of the
* specified collection prevents it from being added to this
* collection
* @throws IllegalStateException if not all the elements can be added at
* this time due to insertion restrictions
* @see #add(Object)
*/
boolean addAll(Collection<? extends E> c);

/**
* Removes all of this collection's elements that are also contained in the
* specified collection (optional operation). After this call returns,
* this collection will contain no elements in common with the specified
* collection.
*
* @param c collection containing elements to be removed from this collection
* @return <tt>true</tt> if this collection changed as a result of the
* call
* @throws UnsupportedOperationException if the <tt>removeAll</tt> method
* is not supported by this collection
* @throws ClassCastException if the types of one or more elements
* in this collection are incompatible with the specified
* collection (optional)
* @throws NullPointerException if this collection contains one or more
* null elements and the specified collection does not support
* null elements (optional), or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)
*/
boolean removeAll(Collection<?> c);

/**
* Retains only the elements in this collection that are contained in the
* specified collection (optional operation). In other words, removes from
* this collection all of its elements that are not contained in the
* specified collection.
*
* @param c collection containing elements to be retained in this collection
* @return <tt>true</tt> if this collection changed as a result of the call
* @throws UnsupportedOperationException if the <tt>retainAll</tt> operation
* is not supported by this collection
* @throws ClassCastException if the types of one or more elements
* in this collection are incompatible with the specified
* collection (optional)
* @throws NullPointerException if this collection contains one or more
* null elements and the specified collection does not permit null
* elements (optional), or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)
*/
boolean retainAll(Collection<?> c);

/**
* Removes all of the elements from this collection (optional operation).
* The collection will be empty after this method returns.
*
* @throws UnsupportedOperationException if the <tt>clear</tt> operation
* is not supported by this collection
*/
void clear();


// Comparison and hashing

/**
* Compares the specified object with this collection for equality. <p>
*
* While the <tt>Collection</tt> interface adds no stipulations to the
* general contract for the <tt>Object.equals</tt>, programmers who
* implement the <tt>Collection</tt> interface "directly" (in other words,
* create a class that is a <tt>Collection</tt> but is not a <tt>Set</tt>
* or a <tt>List</tt>) must exercise care if they choose to override the
* <tt>Object.equals</tt>. It is not necessary to do so, and the simplest
* course of action is to rely on <tt>Object</tt>'s implementation, but
* the implementor may wish to implement a "value comparison" in place of
* the default "reference comparison." (The <tt>List</tt> and
* <tt>Set</tt> interfaces mandate such value comparisons.)<p>
*
* The general contract for the <tt>Object.equals</tt> method states that
* equals must be symmetric (in other words, <tt>a.equals(b)</tt> if and
* only if <tt>b.equals(a)</tt>). The contracts for <tt>List.equals</tt>
* and <tt>Set.equals</tt> state that lists are only equal to other lists,
* and sets to other sets. Thus, a custom <tt>equals</tt> method for a
* collection class that implements neither the <tt>List</tt> nor
* <tt>Set</tt> interface must return <tt>false</tt> when this collection
* is compared to any list or set. (By the same logic, it is not possible
* to write a class that correctly implements both the <tt>Set</tt> and
* <tt>List</tt> interfaces.)
*
* @param o object to be compared for equality with this collection
* @return <tt>true</tt> if the specified object is equal to this
* collection
*
* @see Object#equals(Object)
* @see Set#equals(Object)
* @see List#equals(Object)
*/
boolean equals(Object o);

/**
* Returns the hash code value for this collection. While the
* <tt>Collection</tt> interface adds no stipulations to the general
* contract for the <tt>Object.hashCode</tt> method, programmers should
* take note that any class that overrides the <tt>Object.equals</tt>
* method must also override the <tt>Object.hashCode</tt> method in order
* to satisfy the general contract for the <tt>Object.hashCode</tt>method.
* In particular, <tt>c1.equals(c2)</tt> implies that
* <tt>c1.hashCode()==c2.hashCode()</tt>.
*
* @return the hash code value for this collection
*
* @see Object#hashCode()
* @see Object#equals(Object)
*/
int hashCode();
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* This exception may be thrown by methods that have detected concurrent
* modification of an object when such modification is not permissible.
* <p>
* For example, it is not generally permissible for one thread to modify a Collection
* while another thread is iterating over it. In general, the results of the
* iteration are undefined under these circumstances. Some Iterator
* implementations (including those of all the general purpose collection implementations
* provided by the JRE) may choose to throw this exception if this behavior is
* detected. Iterators that do this are known as <i>fail-fast</i> iterators,
* as they fail quickly and cleanly, rather that risking arbitrary,
* non-deterministic behavior at an undetermined time in the future.
* <p>
* Note that this exception does not always indicate that an object has
* been concurrently modified by a <i>different</i> thread. If a single
* thread issues a sequence of method invocations that violates the
* contract of an object, the object may throw this exception. For
* example, if a thread modifies a collection directly while it is
* iterating over the collection with a fail-fast iterator, the iterator
* will throw this exception.
*
* <p>Note that fail-fast behavior cannot be guaranteed as it is, generally
* speaking, impossible to make any hard guarantees in the presence of
* unsynchronized concurrent modification. Fail-fast operations
* throw <tt>ConcurrentModificationException</tt> on a best-effort basis.
* Therefore, it would be wrong to write a program that depended on this
* exception for its correctness: <i><tt>ConcurrentModificationException</tt>
* should be used only to detect bugs.</i>
*
* @author Josh Bloch
* @see Collection
* @see Iterator
* @see ListIterator
* @see Vector
* @see LinkedList
* @see HashSet
* @see Hashtable
* @see TreeMap
* @see AbstractList
* @since 1.2
*/
public class ConcurrentModificationException extends RuntimeException {
/**
* Constructs a ConcurrentModificationException with no
* detail message.
*/
public ConcurrentModificationException() {
}

/**
* Constructs a <tt>ConcurrentModificationException</tt> with the
* specified detail message.
*
* @param message the detail message pertaining to this exception.
*/
public ConcurrentModificationException(String message) {
super(message);
}
}


/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Written by Doug Lea and Josh Bloch with assistance from members of
* JCP JSR-166 Expert Group and released to the public domain, as explained
* at http://creativecommons.org/licenses/publicdomain
*/

package javaUtilEx;

/**
* A linear collection that supports element insertion and removal at
* both ends. The name <i>deque</i> is short for "double ended queue"
* and is usually pronounced "deck". Most <tt>Deque</tt>
* implementations place no fixed limits on the number of elements
* they may contain, but this interface supports capacity-restricted
* deques as well as those with no fixed size limit.
*
* <p>This interface defines methods to access the elements at both
* ends of the deque. Methods are provided to insert, remove, and
* examine the element. Each of these methods exists in two forms:
* one throws an exception if the operation fails, the other returns a
* special value (either <tt>null</tt> or <tt>false</tt>, depending on
* the operation). The latter form of the insert operation is
* designed specifically for use with capacity-restricted
* <tt>Deque</tt> implementations; in most implementations, insert
* operations cannot fail.
*
* <p>The twelve methods described above are summarized in the
* following table:
*
* <p>
* <table BORDER CELLPADDING=3 CELLSPACING=1>
* <tr>
* <td></td>
* <td ALIGN=CENTER COLSPAN = 2> <b>First Element (Head)</b></td>
* <td ALIGN=CENTER COLSPAN = 2> <b>Last Element (Tail)</b></td>
* </tr>
* <tr>
* <td></td>
* <td ALIGN=CENTER><em>Throws exception</em></td>
* <td ALIGN=CENTER><em>Special value</em></td>
* <td ALIGN=CENTER><em>Throws exception</em></td>
* <td ALIGN=CENTER><em>Special value</em></td>
* </tr>
* <tr>
* <td><b>Insert</b></td>
* <td>{@link #addFirst addFirst(e)}</td>
* <td>{@link #offerFirst offerFirst(e)}</td>
* <td>{@link #addLast addLast(e)}</td>
* <td>{@link #offerLast offerLast(e)}</td>
* </tr>
* <tr>
* <td><b>Remove</b></td>
* <td>{@link #removeFirst removeFirst()}</td>
* <td>{@link #pollFirst pollFirst()}</td>
* <td>{@link #removeLast removeLast()}</td>
* <td>{@link #pollLast pollLast()}</td>
* </tr>
* <tr>
* <td><b>Examine</b></td>
* <td>{@link #getFirst getFirst()}</td>
* <td>{@link #peekFirst peekFirst()}</td>
* <td>{@link #getLast getLast()}</td>
* <td>{@link #peekLast peekLast()}</td>
* </tr>
* </table>
*
* <p>This interface extends the {@link Queue} interface. When a deque is
* used as a queue, FIFO (First-In-First-Out) behavior results. Elements are
* added at the end of the deque and removed from the beginning. The methods
* inherited from the <tt>Queue</tt> interface are precisely equivalent to
* <tt>Deque</tt> methods as indicated in the following table:
*
* <p>
* <table BORDER CELLPADDING=3 CELLSPACING=1>
* <tr>
* <td ALIGN=CENTER> <b><tt>Queue</tt> Method</b></td>
* <td ALIGN=CENTER> <b>Equivalent <tt>Deque</tt> Method</b></td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#add add(e)}</td>
* <td>{@link #addLast addLast(e)}</td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#offer offer(e)}</td>
* <td>{@link #offerLast offerLast(e)}</td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#remove remove()}</td>
* <td>{@link #removeFirst removeFirst()}</td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#poll poll()}</td>
* <td>{@link #pollFirst pollFirst()}</td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#element element()}</td>
* <td>{@link #getFirst getFirst()}</td>
* </tr>
* <tr>
* <td>{@link java.util.Queue#peek peek()}</td>
* <td>{@link #peek peekFirst()}</td>
* </tr>
* </table>
*
* <p>Deques can also be used as LIFO (Last-In-First-Out) stacks. This
* interface should be used in preference to the legacy {@link Stack} class.
* When a deque is used as a stack, elements are pushed and popped from the
* beginning of the deque. Stack methods are precisely equivalent to
* <tt>Deque</tt> methods as indicated in the table below:
*
* <p>
* <table BORDER CELLPADDING=3 CELLSPACING=1>
* <tr>
* <td ALIGN=CENTER> <b>Stack Method</b></td>
* <td ALIGN=CENTER> <b>Equivalent <tt>Deque</tt> Method</b></td>
* </tr>
* <tr>
* <td>{@link #push push(e)}</td>
* <td>{@link #addFirst addFirst(e)}</td>
* </tr>
* <tr>
* <td>{@link #pop pop()}</td>
* <td>{@link #removeFirst removeFirst()}</td>
* </tr>
* <tr>
* <td>{@link #peek peek()}</td>
* <td>{@link #peekFirst peekFirst()}</td>
* </tr>
* </table>
*
* <p>Note that the {@link #peek peek} method works equally well when
* a deque is used as a queue or a stack; in either case, elements are
* drawn from the beginning of the deque.
*
* <p>This interface provides two methods to remove interior
* elements, {@link #removeFirstOccurrence removeFirstOccurrence} and
* {@link #removeLastOccurrence removeLastOccurrence}.
*
* <p>Unlike the {@link List} interface, this interface does not
* provide support for indexed access to elements.
*
* <p>While <tt>Deque</tt> implementations are not strictly required
* to prohibit the insertion of null elements, they are strongly
* encouraged to do so. Users of any <tt>Deque</tt> implementations
* that do allow null elements are strongly encouraged <i>not</i> to
* take advantage of the ability to insert nulls. This is so because
* <tt>null</tt> is used as a special return value by various methods
* to indicated that the deque is empty.
*
* <p><tt>Deque</tt> implementations generally do not define
* element-based versions of the <tt>equals</tt> and <tt>hashCode</tt>
* methods, but instead inherit the identity-based versions from class
* <tt>Object</tt>.
*
* <p>This interface is a member of the <a
* href="{@docRoot}/../technotes/guides/collections/index.html"> Java Collections
* Framework</a>.
*
* @author Doug Lea
* @author Josh Bloch
* @since 1.6
* @param <E> the type of elements held in this collection
*/

public interface Deque<E> extends Queue<E> {
/**
* Inserts the specified element at the front of this deque if it is
* possible to do so immediately without violating capacity restrictions.
* When using a capacity-restricted deque, it is generally preferable to
* use method {@link #offerFirst}.
*
* @param e the element to add
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
void addFirst(E e);

/**
* Inserts the specified element at the end of this deque if it is
* possible to do so immediately without violating capacity restrictions.
* When using a capacity-restricted deque, it is generally preferable to
* use method {@link #offerLast}.
*
* <p>This method is equivalent to {@link #add}.
*
* @param e the element to add
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
void addLast(E e);

/**
* Inserts the specified element at the front of this deque unless it would
* violate capacity restrictions. When using a capacity-restricted deque,
* this method is generally preferable to the {@link #addFirst} method,
* which can fail to insert an element only by throwing an exception.
*
* @param e the element to add
* @return <tt>true</tt> if the element was added to this deque, else
* <tt>false</tt>
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
boolean offerFirst(E e);

/**
* Inserts the specified element at the end of this deque unless it would
* violate capacity restrictions. When using a capacity-restricted deque,
* this method is generally preferable to the {@link #addLast} method,
* which can fail to insert an element only by throwing an exception.
*
* @param e the element to add
* @return <tt>true</tt> if the element was added to this deque, else
* <tt>false</tt>
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
boolean offerLast(E e);

/**
* Retrieves and removes the first element of this deque. This method
* differs from {@link #pollFirst pollFirst} only in that it throws an
* exception if this deque is empty.
*
* @return the head of this deque
* @throws NoSuchElementException if this deque is empty
*/
E removeFirst();

/**
* Retrieves and removes the last element of this deque. This method
* differs from {@link #pollLast pollLast} only in that it throws an
* exception if this deque is empty.
*
* @return the tail of this deque
* @throws NoSuchElementException if this deque is empty
*/
E removeLast();

/**
* Retrieves and removes the first element of this deque,
* or returns <tt>null</tt> if this deque is empty.
*
* @return the head of this deque, or <tt>null</tt> if this deque is empty
*/
E pollFirst();

/**
* Retrieves and removes the last element of this deque,
* or returns <tt>null</tt> if this deque is empty.
*
* @return the tail of this deque, or <tt>null</tt> if this deque is empty
*/
E pollLast();

/**
* Retrieves, but does not remove, the first element of this deque.
*
* This method differs from {@link #peekFirst peekFirst} only in that it
* throws an exception if this deque is empty.
*
* @return the head of this deque
* @throws NoSuchElementException if this deque is empty
*/
E getFirst();

/**
* Retrieves, but does not remove, the last element of this deque.
* This method differs from {@link #peekLast peekLast} only in that it
* throws an exception if this deque is empty.
*
* @return the tail of this deque
* @throws NoSuchElementException if this deque is empty
*/
E getLast();

/**
* Retrieves, but does not remove, the first element of this deque,
* or returns <tt>null</tt> if this deque is empty.
*
* @return the head of this deque, or <tt>null</tt> if this deque is empty
*/
E peekFirst();

/**
* Retrieves, but does not remove, the last element of this deque,
* or returns <tt>null</tt> if this deque is empty.
*
* @return the tail of this deque, or <tt>null</tt> if this deque is empty
*/
E peekLast();

/**
* Removes the first occurrence of the specified element from this deque.
* If the deque does not contain the element, it is unchanged.
* More formally, removes the first element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>
* (if such an element exists).
* Returns <tt>true</tt> if this deque contained the specified element
* (or equivalently, if this deque changed as a result of the call).
*
* @param o element to be removed from this deque, if present
* @return <tt>true</tt> if an element was removed as a result of this call
* @throws ClassCastException if the class of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements (optional)
*/
boolean removeFirstOccurrence(Object o);

/**
* Removes the last occurrence of the specified element from this deque.
* If the deque does not contain the element, it is unchanged.
* More formally, removes the last element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>
* (if such an element exists).
* Returns <tt>true</tt> if this deque contained the specified element
* (or equivalently, if this deque changed as a result of the call).
*
* @param o element to be removed from this deque, if present
* @return <tt>true</tt> if an element was removed as a result of this call
* @throws ClassCastException if the class of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements (optional)
*/
boolean removeLastOccurrence(Object o);

// *** Queue methods ***

/**
* Inserts the specified element into the queue represented by this deque
* (in other words, at the tail of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
* <tt>true</tt> upon success and throwing an
* <tt>IllegalStateException</tt> if no space is currently available.
* When using a capacity-restricted deque, it is generally preferable to
* use {@link #offer(Object) offer}.
*
* <p>This method is equivalent to {@link #addLast}.
*
* @param e the element to add
* @return <tt>true</tt> (as specified by {@link Collection#add})
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
boolean add(E e);

/**
* Inserts the specified element into the queue represented by this deque
* (in other words, at the tail of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
* <tt>true</tt> upon success and <tt>false</tt> if no space is currently
* available. When using a capacity-restricted deque, this method is
* generally preferable to the {@link #add} method, which can fail to
* insert an element only by throwing an exception.
*
* <p>This method is equivalent to {@link #offerLast}.
*
* @param e the element to add
* @return <tt>true</tt> if the element was added to this deque, else
* <tt>false</tt>
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
boolean offer(E e);

/**
* Retrieves and removes the head of the queue represented by this deque
* (in other words, the first element of this deque).
* This method differs from {@link #poll poll} only in that it throws an
* exception if this deque is empty.
*
* <p>This method is equivalent to {@link #removeFirst()}.
*
* @return the head of the queue represented by this deque
* @throws NoSuchElementException if this deque is empty
*/
E remove();

/**
* Retrieves and removes the head of the queue represented by this deque
* (in other words, the first element of this deque), or returns
* <tt>null</tt> if this deque is empty.
*
* <p>This method is equivalent to {@link #pollFirst()}.
*
* @return the first element of this deque, or <tt>null</tt> if
* this deque is empty
*/
E poll();

/**
* Retrieves, but does not remove, the head of the queue represented by
* this deque (in other words, the first element of this deque).
* This method differs from {@link #peek peek} only in that it throws an
* exception if this deque is empty.
*
* <p>This method is equivalent to {@link #getFirst()}.
*
* @return the head of the queue represented by this deque
* @throws NoSuchElementException if this deque is empty
*/
E element();

/**
* Retrieves, but does not remove, the head of the queue represented by
* this deque (in other words, the first element of this deque), or
* returns <tt>null</tt> if this deque is empty.
*
* <p>This method is equivalent to {@link #peekFirst()}.
*
* @return the head of the queue represented by this deque, or
* <tt>null</tt> if this deque is empty
*/
E peek();


// *** Stack methods ***

/**
* Pushes an element onto the stack represented by this deque (in other
* words, at the head of this deque) if it is possible to do so
* immediately without violating capacity restrictions, returning
* <tt>true</tt> upon success and throwing an
* <tt>IllegalStateException</tt> if no space is currently available.
*
* <p>This method is equivalent to {@link #addFirst}.
*
* @param e the element to push
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this deque
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this deque
*/
void push(E e);

/**
* Pops an element from the stack represented by this deque. In other
* words, removes and returns the first element of this deque.
*
* <p>This method is equivalent to {@link #removeFirst()}.
*
* @return the element at the front of this deque (which is the top
* of the stack represented by this deque)
* @throws NoSuchElementException if this deque is empty
*/
E pop();


// *** Collection methods ***

/**
* Removes the first occurrence of the specified element from this deque.
* If the deque does not contain the element, it is unchanged.
* More formally, removes the first element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>
* (if such an element exists).
* Returns <tt>true</tt> if this deque contained the specified element
* (or equivalently, if this deque changed as a result of the call).
*
* <p>This method is equivalent to {@link #removeFirstOccurrence}.
*
* @param o element to be removed from this deque, if present
* @return <tt>true</tt> if an element was removed as a result of this call
* @throws ClassCastException if the class of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements (optional)
*/
boolean remove(Object o);

/**
* Returns <tt>true</tt> if this deque contains the specified element.
* More formally, returns <tt>true</tt> if and only if this deque contains
* at least one element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
*
* @param o element whose presence in this deque is to be tested
* @return <tt>true</tt> if this deque contains the specified element
* @throws ClassCastException if the type of the specified element
* is incompatible with this deque (optional)
* @throws NullPointerException if the specified element is null and this
* deque does not permit null elements (optional)
*/
boolean contains(Object o);

/**
* Returns the number of elements in this deque.
*
* @return the number of elements in this deque
*/
public int size();

/**
* Returns an iterator over the elements in this deque in proper sequence.
* The elements will be returned in order from first (head) to last (tail).
*
* @return an iterator over the elements in this deque in proper sequence
*/
Iterator<E> iterator();

/**
* Returns an iterator over the elements in this deque in reverse
* sequential order. The elements will be returned in order from
* last (tail) to first (head).
*
* @return an iterator over the elements in this deque in reverse
* sequence
*/
Iterator<E> descendingIterator();

}


/*
* Copyright 1994-2003 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Thrown to indicate that a method has been passed an illegal or
* inappropriate argument.
*
* @author unascribed
* @see java.lang.Thread#setPriority(int)
* @since JDK1.0
*/
public
class IllegalArgumentException extends RuntimeException {
/**
* Constructs an <code>IllegalArgumentException</code> with no
* detail message.
*/
public IllegalArgumentException() {
super();
}

/**
* Constructs an <code>IllegalArgumentException</code> with the
* specified detail message.
*
* @param s the detail message.
*/
public IllegalArgumentException(String s) {
super(s);
}

/**
* Constructs a new exception with the specified detail message and
* cause.
*
* <p>Note that the detail message associated with <code>cause</code> is
* <i>not</i> automatically incorporated in this exception's detail
* message.
*
* @param message the detail message (which is saved for later retrieval
* by the {@link Throwable#getMessage()} method).
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value
* is permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public IllegalArgumentException(String message, Throwable cause) {
super(message, cause);
}

/**
* Constructs a new exception with the specified cause and a detail
* message of <tt>(cause==null ? null : cause.toString())</tt> (which
* typically contains the class and detail message of <tt>cause</tt>).
* This constructor is useful for exceptions that are little more than
* wrappers for other throwables (for example, {@link
* java.security.PrivilegedActionException}).
*
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value is
* permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public IllegalArgumentException(Throwable cause) {
super(cause);
}

private static final long serialVersionUID = -5365630128856068164L;
}


/*
* Copyright 1996-2003 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Signals that a method has been invoked at an illegal or
* inappropriate time. In other words, the Java environment or
* Java application is not in an appropriate state for the requested
* operation.
*
* @author Jonni Kanerva
* @since JDK1.1
*/
public
class IllegalStateException extends RuntimeException {
/**
* Constructs an IllegalStateException with no detail message.
* A detail message is a String that describes this particular exception.
*/
public IllegalStateException() {
super();
}

/**
* Constructs an IllegalStateException with the specified detail
* message. A detail message is a String that describes this particular
* exception.
*
* @param s the String that contains a detailed message
*/
public IllegalStateException(String s) {
super(s);
}

/**
* Constructs a new exception with the specified detail message and
* cause.
*
* <p>Note that the detail message associated with <code>cause</code> is
* <i>not</i> automatically incorporated in this exception's detail
* message.
*
* @param message the detail message (which is saved for later retrieval
* by the {@link Throwable#getMessage()} method).
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value
* is permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public IllegalStateException(String message, Throwable cause) {
super(message, cause);
}

/**
* Constructs a new exception with the specified cause and a detail
* message of <tt>(cause==null ? null : cause.toString())</tt> (which
* typically contains the class and detail message of <tt>cause</tt>).
* This constructor is useful for exceptions that are little more than
* wrappers for other throwables (for example, {@link
* java.security.PrivilegedActionException}).
*
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value is
* permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public IllegalStateException(Throwable cause) {
super(cause);
}

static final long serialVersionUID = -1848914673093119416L;
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* An iterator over a collection. {@code Iterator} takes the place of
* {@link Enumeration} in the Java Collections Framework. Iterators
* differ from enumerations in two ways:
*
* <ul>
* <li> Iterators allow the caller to remove elements from the
* underlying collection during the iteration with well-defined
* semantics.
* <li> Method names have been improved.
* </ul>
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @see Collection
* @see ListIterator
* @see Iterable
* @since 1.2
*/
public interface Iterator<E> {
/**
* Returns {@code true} if the iteration has more elements.
* (In other words, returns {@code true} if {@link #next} would
* return an element rather than throwing an exception.)
*
* @return {@code true} if the iteration has more elements
*/
boolean hasNext();

/**
* Returns the next element in the iteration.
*
* @return the next element in the iteration
* @throws NoSuchElementException if the iteration has no more elements
*/
E next();

/**
* Removes from the underlying collection the last element returned
* by this iterator (optional operation). This method can be called
* only once per call to {@link #next}. The behavior of an iterator
* is unspecified if the underlying collection is modified while the
* iteration is in progress in any way other than by calling this
* method.
*
* @throws UnsupportedOperationException if the {@code remove}
* operation is not supported by this iterator
*
* @throws IllegalStateException if the {@code next} method has not
* yet been called, or the {@code remove} method has already
* been called after the last call to the {@code next}
* method
*/
void remove();
}


package javaUtilEx;

public class juLinkedListCreateGetLast {
public static void main(String[] args) {
Random.args = args;

LinkedList<Content> l = createList(Random.random());
l.getLast();
}

public static LinkedList<Content> createList(int n) {
LinkedList<Content> l = new LinkedList<Content>();
while (n > 0) {
l.addLast(new Content(Random.random()));
n--;
}
return l;
}
}

final class Content {
int val;

public Content(int v) {
this.val = v;
}

public int hashCode() {
return val^31;
}

public boolean equals(Object o) {
if (o instanceof Content) {
return this.val == ((Content) o).val;
}
return false;
}
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Linked list implementation of the <tt>List</tt> interface. Implements all
* optional list operations, and permits all elements (including
* <tt>null</tt>). In addition to implementing the <tt>List</tt> interface,
* the <tt>LinkedList</tt> class provides uniformly named methods to
* <tt>get</tt>, <tt>remove</tt> and <tt>insert</tt> an element at the
* beginning and end of the list. These operations allow linked lists to be
* used as a stack, {@linkplain Queue queue}, or {@linkplain Deque
* double-ended queue}. <p>
*
* The class implements the <tt>Deque</tt> interface, providing
* first-in-first-out queue operations for <tt>add</tt>,
* <tt>poll</tt>, along with other stack and deque operations.<p>
*
* All of the operations perform as could be expected for a doubly-linked
* list. Operations that index into the list will traverse the list from
* the beginning or the end, whichever is closer to the specified index.<p>
*
* <p><strong>Note that this implementation is not synchronized.</strong>
* If multiple threads access a linked list concurrently, and at least
* one of the threads modifies the list structurally, it <i>must</i> be
* synchronized externally. (A structural modification is any operation
* that adds or deletes one or more elements; merely setting the value of
* an element is not a structural modification.) This is typically
* accomplished by synchronizing on some object that naturally
* encapsulates the list.
*
* If no such object exists, the list should be "wrapped" using the
* {@link Collections#synchronizedList Collections.synchronizedList}
* method. This is best done at creation time, to prevent accidental
* unsynchronized access to the list:<pre>
* List list = Collections.synchronizedList(new LinkedList(...));</pre>
*
* <p>The iterators returned by this class's <tt>iterator</tt> and
* <tt>listIterator</tt> methods are <i>fail-fast</i>: if the list is
* structurally modified at any time after the iterator is created, in
* any way except through the Iterator's own <tt>remove</tt> or
* <tt>add</tt> methods, the iterator will throw a {@link
* ConcurrentModificationException}. Thus, in the face of concurrent
* modification, the iterator fails quickly and cleanly, rather than
* risking arbitrary, non-deterministic behavior at an undetermined
* time in the future.
*
* <p>Note that the fail-fast behavior of an iterator cannot be guaranteed
* as it is, generally speaking, impossible to make any hard guarantees in the
* presence of unsynchronized concurrent modification. Fail-fast iterators
* throw <tt>ConcurrentModificationException</tt> on a best-effort basis.
* Therefore, it would be wrong to write a program that depended on this
* exception for its correctness: <i>the fail-fast behavior of iterators
* should be used only to detect bugs.</i>
*
* <p>This class is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @see List
* @see ArrayList
* @see Vector
* @since 1.2
* @param <E> the type of elements held in this collection
*/

public class LinkedList<E>
extends AbstractSequentialList<E>
implements List<E>, Deque<E>
{
private transient Entry<E> header = new Entry<E>(null, null, null);
private transient int size = 0;

/**
* Constructs an empty list.
*/
public LinkedList() {
header.next = header.previous = header;
}

/**
* Constructs a list containing the elements of the specified
* collection, in the order they are returned by the collection's
* iterator.
*
* @param c the collection whose elements are to be placed into this list
* @throws NullPointerException if the specified collection is null
*/
public LinkedList(Collection<? extends E> c) {
this();
addAll(c);
}

/**
* Returns the first element in this list.
*
* @return the first element in this list
* @throws NoSuchElementException if this list is empty
*/
public E getFirst() {
if (size==0)
throw new NoSuchElementException();

return header.next.element;
}

/**
* Returns the last element in this list.
*
* @return the last element in this list
* @throws NoSuchElementException if this list is empty
*/
public E getLast() {
if (size==0)
throw new NoSuchElementException();

return header.previous.element;
}

/**
* Removes and returns the first element from this list.
*
* @return the first element from this list
* @throws NoSuchElementException if this list is empty
*/
public E removeFirst() {
return remove(header.next);
}

/**
* Removes and returns the last element from this list.
*
* @return the last element from this list
* @throws NoSuchElementException if this list is empty
*/
public E removeLast() {
return remove(header.previous);
}

/**
* Inserts the specified element at the beginning of this list.
*
* @param e the element to add
*/
public void addFirst(E e) {
addBefore(e, header.next);
}

/**
* Appends the specified element to the end of this list.
*
* <p>This method is equivalent to {@link #add}.
*
* @param e the element to add
*/
public void addLast(E e) {
addBefore(e, header);
}

/**
* Returns <tt>true</tt> if this list contains the specified element.
* More formally, returns <tt>true</tt> if and only if this list contains
* at least one element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
*
* @param o element whose presence in this list is to be tested
* @return <tt>true</tt> if this list contains the specified element
*/
public boolean contains(Object o) {
return indexOf(o) != -1;
}

/**
* Returns the number of elements in this list.
*
* @return the number of elements in this list
*/
public int size() {
return size;
}

/**
* Appends the specified element to the end of this list.
*
* <p>This method is equivalent to {@link #addLast}.
*
* @param e element to be appended to this list
* @return <tt>true</tt> (as specified by {@link Collection#add})
*/
public boolean add(E e) {
addBefore(e, header);
return true;
}

/**
* Removes the first occurrence of the specified element from this list,
* if it is present. If this list does not contain the element, it is
* unchanged. More formally, removes the element with the lowest index
* <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>
* (if such an element exists). Returns <tt>true</tt> if this list
* contained the specified element (or equivalently, if this list
* changed as a result of the call).
*
* @param o element to be removed from this list, if present
* @return <tt>true</tt> if this list contained the specified element
*/
public boolean remove(Object o) {
if (o==null) {
for (Entry<E> e = header.next; e != header; e = e.next) {
if (e.element==null) {
remove(e);
return true;
}
}
} else {
for (Entry<E> e = header.next; e != header; e = e.next) {
if (o.equals(e.element)) {
remove(e);
return true;
}
}
}
return false;
}
/**
* Removes all of the elements from this list.
*/
public void clear() {
Entry<E> e = header.next;
while (e != header) {
Entry<E> next = e.next;
e.next = e.previous = null;
e.element = null;
e = next;
}
header.next = header.previous = header;
size = 0;
modCount++;
}


// Positional Access Operations

/**
* Returns the element at the specified position in this list.
*
* @param index index of the element to return
* @return the element at the specified position in this list
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E get(int index) {
return entry(index).element;
}

/**
* Replaces the element at the specified position in this list with the
* specified element.
*
* @param index index of the element to replace
* @param element element to be stored at the specified position
* @return the element previously at the specified position
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E set(int index, E element) {
Entry<E> e = entry(index);
E oldVal = e.element;
e.element = element;
return oldVal;
}

/**
* Inserts the specified element at the specified position in this list.
* Shifts the element currently at that position (if any) and any
* subsequent elements to the right (adds one to their indices).
*
* @param index index at which the specified element is to be inserted
* @param element element to be inserted
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public void add(int index, E element) {
addBefore(element, (index==size ? header : entry(index)));
}

/**
* Removes the element at the specified position in this list. Shifts any
* subsequent elements to the left (subtracts one from their indices).
* Returns the element that was removed from the list.
*
* @param index the index of the element to be removed
* @return the element previously at the specified position
* @throws IndexOutOfBoundsException {@inheritDoc}
*/
public E remove(int index) {
return remove(entry(index));
}

/**
* Returns the indexed entry.
*/
private Entry<E> entry(int index) {
if (index < 0 || index >= size)
throw new IndexOutOfBoundsException();
Entry<E> e = header;
if (index < (size >> 1)) {
for (int i = 0; i <= index; i++)
e = e.next;
} else {
for (int i = size; i > index; i--)
e = e.previous;
}
return e;
}


// Search Operations

/**
* Returns the index of the first occurrence of the specified element
* in this list, or -1 if this list does not contain the element.
* More formally, returns the lowest index <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
* or -1 if there is no such index.
*
* @param o element to search for
* @return the index of the first occurrence of the specified element in
* this list, or -1 if this list does not contain the element
*/
public int indexOf(Object o) {
int index = 0;
if (o==null) {
for (Entry e = header.next; e != header; e = e.next) {
if (e.element==null)
return index;
index++;
}
} else {
for (Entry e = header.next; e != header; e = e.next) {
if (o.equals(e.element))
return index;
index++;
}
}
return -1;
}

/**
* Returns the index of the last occurrence of the specified element
* in this list, or -1 if this list does not contain the element.
* More formally, returns the highest index <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
* or -1 if there is no such index.
*
* @param o element to search for
* @return the index of the last occurrence of the specified element in
* this list, or -1 if this list does not contain the element
*/
public int lastIndexOf(Object o) {
int index = size;
if (o==null) {
for (Entry e = header.previous; e != header; e = e.previous) {
index--;
if (e.element==null)
return index;
}
} else {
for (Entry e = header.previous; e != header; e = e.previous) {
index--;
if (o.equals(e.element))
return index;
}
}
return -1;
}

// Queue operations.

/**
* Retrieves, but does not remove, the head (first element) of this list.
* @return the head of this list, or <tt>null</tt> if this list is empty
* @since 1.5
*/
public E peek() {
if (size==0)
return null;
return getFirst();
}

/**
* Retrieves, but does not remove, the head (first element) of this list.
* @return the head of this list
* @throws NoSuchElementException if this list is empty
* @since 1.5
*/
public E element() {
return getFirst();
}

/**
* Retrieves and removes the head (first element) of this list
* @return the head of this list, or <tt>null</tt> if this list is empty
* @since 1.5
*/
public E poll() {
if (size==0)
return null;
return removeFirst();
}

/**
* Retrieves and removes the head (first element) of this list.
*
* @return the head of this list
* @throws NoSuchElementException if this list is empty
* @since 1.5
*/
public E remove() {
return removeFirst();
}

/**
* Adds the specified element as the tail (last element) of this list.
*
* @param e the element to add
* @return <tt>true</tt> (as specified by {@link Queue#offer})
* @since 1.5
*/
public boolean offer(E e) {
return add(e);
}

// Deque operations
/**
* Inserts the specified element at the front of this list.
*
* @param e the element to insert
* @return <tt>true</tt> (as specified by {@link Deque#offerFirst})
* @since 1.6
*/
public boolean offerFirst(E e) {
addFirst(e);
return true;
}

/**
* Inserts the specified element at the end of this list.
*
* @param e the element to insert
* @return <tt>true</tt> (as specified by {@link Deque#offerLast})
* @since 1.6
*/
public boolean offerLast(E e) {
addLast(e);
return true;
}

/**
* Retrieves, but does not remove, the first element of this list,
* or returns <tt>null</tt> if this list is empty.
*
* @return the first element of this list, or <tt>null</tt>
* if this list is empty
* @since 1.6
*/
public E peekFirst() {
if (size==0)
return null;
return getFirst();
}

/**
* Retrieves, but does not remove, the last element of this list,
* or returns <tt>null</tt> if this list is empty.
*
* @return the last element of this list, or <tt>null</tt>
* if this list is empty
* @since 1.6
*/
public E peekLast() {
if (size==0)
return null;
return getLast();
}

/**
* Retrieves and removes the first element of this list,
* or returns <tt>null</tt> if this list is empty.
*
* @return the first element of this list, or <tt>null</tt> if
* this list is empty
* @since 1.6
*/
public E pollFirst() {
if (size==0)
return null;
return removeFirst();
}

/**
* Retrieves and removes the last element of this list,
* or returns <tt>null</tt> if this list is empty.
*
* @return the last element of this list, or <tt>null</tt> if
* this list is empty
* @since 1.6
*/
public E pollLast() {
if (size==0)
return null;
return removeLast();
}

/**
* Pushes an element onto the stack represented by this list. In other
* words, inserts the element at the front of this list.
*
* <p>This method is equivalent to {@link #addFirst}.
*
* @param e the element to push
* @since 1.6
*/
public void push(E e) {
addFirst(e);
}

/**
* Pops an element from the stack represented by this list. In other
* words, removes and returns the first element of this list.
*
* <p>This method is equivalent to {@link #removeFirst()}.
*
* @return the element at the front of this list (which is the top
* of the stack represented by this list)
* @throws NoSuchElementException if this list is empty
* @since 1.6
*/
public E pop() {
return removeFirst();
}

/**
* Removes the first occurrence of the specified element in this
* list (when traversing the list from head to tail). If the list
* does not contain the element, it is unchanged.
*
* @param o element to be removed from this list, if present
* @return <tt>true</tt> if the list contained the specified element
* @since 1.6
*/
public boolean removeFirstOccurrence(Object o) {
return remove(o);
}

/**
* Removes the last occurrence of the specified element in this
* list (when traversing the list from head to tail). If the list
* does not contain the element, it is unchanged.
*
* @param o element to be removed from this list, if present
* @return <tt>true</tt> if the list contained the specified element
* @since 1.6
*/
public boolean removeLastOccurrence(Object o) {
if (o==null) {
for (Entry<E> e = header.previous; e != header; e = e.previous) {
if (e.element==null) {
remove(e);
return true;
}
}
} else {
for (Entry<E> e = header.previous; e != header; e = e.previous) {
if (o.equals(e.element)) {
remove(e);
return true;
}
}
}
return false;
}

/**
* Returns a list-iterator of the elements in this list (in proper
* sequence), starting at the specified position in the list.
* Obeys the general contract of <tt>List.listIterator(int)</tt>.<p>
*
* The list-iterator is <i>fail-fast</i>: if the list is structurally
* modified at any time after the Iterator is created, in any way except
* through the list-iterator's own <tt>remove</tt> or <tt>add</tt>
* methods, the list-iterator will throw a
* <tt>ConcurrentModificationException</tt>. Thus, in the face of
* concurrent modification, the iterator fails quickly and cleanly, rather
* than risking arbitrary, non-deterministic behavior at an undetermined
* time in the future.
*
* @param index index of the first element to be returned from the
* list-iterator (by a call to <tt>next</tt>)
* @return a ListIterator of the elements in this list (in proper
* sequence), starting at the specified position in the list
* @throws IndexOutOfBoundsException {@inheritDoc}
* @see List#listIterator(int)
*/
public ListIterator<E> listIterator(int index) {
return new ListItr(index);
}

private class ListItr implements ListIterator<E> {
private Entry<E> lastReturned = header;
private Entry<E> next;
private int nextIndex;
private int expectedModCount = modCount;

ListItr(int index) {
if (index < 0 || index > size)
throw new IndexOutOfBoundsException();
if (index < (size >> 1)) {
next = header.next;
for (nextIndex=0; nextIndex<index; nextIndex++)
next = next.next;
} else {
next = header;
for (nextIndex=size; nextIndex>index; nextIndex--)
next = next.previous;
}
}

public boolean hasNext() {
return nextIndex != size;
}

public E next() {
checkForComodification();
if (nextIndex == size)
throw new NoSuchElementException();

lastReturned = next;
next = next.next;
nextIndex++;
return lastReturned.element;
}

public boolean hasPrevious() {
return nextIndex != 0;
}

public E previous() {
if (nextIndex == 0)
throw new NoSuchElementException();

lastReturned = next = next.previous;
nextIndex--;
checkForComodification();
return lastReturned.element;
}

public int nextIndex() {
return nextIndex;
}

public int previousIndex() {
return nextIndex-1;
}

public void remove() {
checkForComodification();
Entry<E> lastNext = lastReturned.next;
try {
LinkedList.this.remove(lastReturned);
} catch (NoSuchElementException e) {
throw new IllegalStateException();
}
if (next==lastReturned)
next = lastNext;
else
nextIndex--;
lastReturned = header;
expectedModCount++;
}

public void set(E e) {
if (lastReturned == header)
throw new IllegalStateException();
checkForComodification();
lastReturned.element = e;
}

public void add(E e) {
checkForComodification();
lastReturned = header;
addBefore(e, next);
nextIndex++;
expectedModCount++;
}

final void checkForComodification() {
if (modCount != expectedModCount)
throw new ConcurrentModificationException();
}
}

private static class Entry<E> {
E element;
Entry<E> next;
Entry<E> previous;

Entry(E element, Entry<E> next, Entry<E> previous) {
this.element = element;
this.next = next;
this.previous = previous;
}
}

private Entry<E> addBefore(E e, Entry<E> entry) {
Entry<E> newEntry = new Entry<E>(e, entry, entry.previous);
newEntry.previous.next = newEntry;
newEntry.next.previous = newEntry;
size++;
modCount++;
return newEntry;
}

private E remove(Entry<E> e) {
if (e == header)
throw new NoSuchElementException();

E result = e.element;
e.previous.next = e.next;
e.next.previous = e.previous;
e.next = e.previous = null;
e.element = null;
size--;
modCount++;
return result;
}

/**
* @since 1.6
*/
public Iterator<E> descendingIterator() {
return new DescendingIterator();
}

/** Adapter to provide descending iterators via ListItr.previous */
private class DescendingIterator implements Iterator {
final ListItr itr = new ListItr(size());
public boolean hasNext() {
return itr.hasPrevious();
}
public E next() {
return itr.previous();
}
public void remove() {
itr.remove();
}
}

/**
* Returns an array containing all of the elements in this list
* in proper sequence (from first to last element).
*
* <p>The returned array will be "safe" in that no references to it are
* maintained by this list. (In other words, this method must allocate
* a new array). The caller is thus free to modify the returned array.
*
* <p>This method acts as bridge between array-based and collection-based
* APIs.
*
* @return an array containing all of the elements in this list
* in proper sequence
*/
public Object[] toArray() {
Object[] result = new Object[size];
int i = 0;
for (Entry<E> e = header.next; e != header; e = e.next)
result[i++] = e.element;
return result;
}

private static final long serialVersionUID = 876323262645176354L;
}


/*
* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* An iterator for lists that allows the programmer
* to traverse the list in either direction, modify
* the list during iteration, and obtain the iterator's
* current position in the list. A {@code ListIterator}
* has no current element; its <I>cursor position</I> always
* lies between the element that would be returned by a call
* to {@code previous()} and the element that would be
* returned by a call to {@code next()}.
* An iterator for a list of length {@code n} has {@code n+1} possible
* cursor positions, as illustrated by the carets ({@code ^}) below:
* <PRE>
* Element(0) Element(1) Element(2) ... Element(n-1)
* cursor positions: ^ ^ ^ ^ ^
* </PRE>
* Note that the {@link #remove} and {@link #set(Object)} methods are
* <i>not</i> defined in terms of the cursor position; they are defined to
* operate on the last element returned by a call to {@link #next} or
* {@link #previous()}.
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @see Collection
* @see List
* @see Iterator
* @see Enumeration
* @see List#listIterator()
* @since 1.2
*/
public interface ListIterator<E> extends Iterator<E> {
// Query Operations

/**
* Returns {@code true} if this list iterator has more elements when
* traversing the list in the forward direction. (In other words,
* returns {@code true} if {@link #next} would return an element rather
* than throwing an exception.)
*
* @return {@code true} if the list iterator has more elements when
* traversing the list in the forward direction
*/
boolean hasNext();

/**
* Returns the next element in the list and advances the cursor position.
* This method may be called repeatedly to iterate through the list,
* or intermixed with calls to {@link #previous} to go back and forth.
* (Note that alternating calls to {@code next} and {@code previous}
* will return the same element repeatedly.)
*
* @return the next element in the list
* @throws NoSuchElementException if the iteration has no next element
*/
E next();

/**
* Returns {@code true} if this list iterator has more elements when
* traversing the list in the reverse direction. (In other words,
* returns {@code true} if {@link #previous} would return an element
* rather than throwing an exception.)
*
* @return {@code true} if the list iterator has more elements when
* traversing the list in the reverse direction
*/
boolean hasPrevious();

/**
* Returns the previous element in the list and moves the cursor
* position backwards. This method may be called repeatedly to
* iterate through the list backwards, or intermixed with calls to
* {@link #next} to go back and forth. (Note that alternating calls
* to {@code next} and {@code previous} will return the same
* element repeatedly.)
*
* @return the previous element in the list
* @throws NoSuchElementException if the iteration has no previous
* element
*/
E previous();

/**
* Returns the index of the element that would be returned by a
* subsequent call to {@link #next}. (Returns list size if the list
* iterator is at the end of the list.)
*
* @return the index of the element that would be returned by a
* subsequent call to {@code next}, or list size if the list
* iterator is at the end of the list
*/
int nextIndex();

/**
* Returns the index of the element that would be returned by a
* subsequent call to {@link #previous}. (Returns -1 if the list
* iterator is at the beginning of the list.)
*
* @return the index of the element that would be returned by a
* subsequent call to {@code previous}, or -1 if the list
* iterator is at the beginning of the list
*/
int previousIndex();


// Modification Operations

/**
* Removes from the list the last element that was returned by {@link
* #next} or {@link #previous} (optional operation). This call can
* only be made once per call to {@code next} or {@code previous}.
* It can be made only if {@link #add} has not been
* called after the last call to {@code next} or {@code previous}.
*
* @throws UnsupportedOperationException if the {@code remove}
* operation is not supported by this list iterator
* @throws IllegalStateException if neither {@code next} nor
* {@code previous} have been called, or {@code remove} or
* {@code add} have been called after the last call to
* {@code next} or {@code previous}
*/
void remove();

/**
* Replaces the last element returned by {@link #next} or
* {@link #previous} with the specified element (optional operation).
* This call can be made only if neither {@link #remove} nor {@link
* #add} have been called after the last call to {@code next} or
* {@code previous}.
*
* @param e the element with which to replace the last element returned by
* {@code next} or {@code previous}
* @throws UnsupportedOperationException if the {@code set} operation
* is not supported by this list iterator
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws IllegalArgumentException if some aspect of the specified
* element prevents it from being added to this list
* @throws IllegalStateException if neither {@code next} nor
* {@code previous} have been called, or {@code remove} or
* {@code add} have been called after the last call to
* {@code next} or {@code previous}
*/
void set(E e);

/**
* Inserts the specified element into the list (optional operation).
* The element is inserted immediately before the next element that
* would be returned by {@link #next}, if any, and after the next
* element that would be returned by {@link #previous}, if any. (If the
* list contains no elements, the new element becomes the sole element
* on the list.) The new element is inserted before the implicit
* cursor: a subsequent call to {@code next} would be unaffected, and a
* subsequent call to {@code previous} would return the new element.
* (This call increases by one the value that would be returned by a
* call to {@code nextIndex} or {@code previousIndex}.)
*
* @param e the element to insert
* @throws UnsupportedOperationException if the {@code add} method is
* not supported by this list iterator
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws IllegalArgumentException if some aspect of this element
* prevents it from being added to this list
*/
void add(E e);
}


/*
* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* An ordered collection (also known as a <i>sequence</i>). The user of this
* interface has precise control over where in the list each element is
* inserted. The user can access elements by their integer index (position in
* the list), and search for elements in the list.<p>
*
* Unlike sets, lists typically allow duplicate elements. More formally,
* lists typically allow pairs of elements <tt>e1</tt> and <tt>e2</tt>
* such that <tt>e1.equals(e2)</tt>, and they typically allow multiple
* null elements if they allow null elements at all. It is not inconceivable
* that someone might wish to implement a list that prohibits duplicates, by
* throwing runtime exceptions when the user attempts to insert them, but we
* expect this usage to be rare.<p>
*
* The <tt>List</tt> interface places additional stipulations, beyond those
* specified in the <tt>Collection</tt> interface, on the contracts of the
* <tt>iterator</tt>, <tt>add</tt>, <tt>remove</tt>, <tt>equals</tt>, and
* <tt>hashCode</tt> methods. Declarations for other inherited methods are
* also included here for convenience.<p>
*
* The <tt>List</tt> interface provides four methods for positional (indexed)
* access to list elements. Lists (like Java arrays) are zero based. Note
* that these operations may execute in time proportional to the index value
* for some implementations (the <tt>LinkedList</tt> class, for
* example). Thus, iterating over the elements in a list is typically
* preferable to indexing through it if the caller does not know the
* implementation.<p>
*
* The <tt>List</tt> interface provides a special iterator, called a
* <tt>ListIterator</tt>, that allows element insertion and replacement, and
* bidirectional access in addition to the normal operations that the
* <tt>Iterator</tt> interface provides. A method is provided to obtain a
* list iterator that starts at a specified position in the list.<p>
*
* The <tt>List</tt> interface provides two methods to search for a specified
* object. From a performance standpoint, these methods should be used with
* caution. In many implementations they will perform costly linear
* searches.<p>
*
* The <tt>List</tt> interface provides two methods to efficiently insert and
* remove multiple elements at an arbitrary point in the list.<p>
*
* Note: While it is permissible for lists to contain themselves as elements,
* extreme caution is advised: the <tt>equals</tt> and <tt>hashCode</tt>
* methods are no longer well defined on such a list.
*
* <p>Some list implementations have restrictions on the elements that
* they may contain. For example, some implementations prohibit null elements,
* and some have restrictions on the types of their elements. Attempting to
* add an ineligible element throws an unchecked exception, typically
* <tt>NullPointerException</tt> or <tt>ClassCastException</tt>. Attempting
* to query the presence of an ineligible element may throw an exception,
* or it may simply return false; some implementations will exhibit the former
* behavior and some will exhibit the latter. More generally, attempting an
* operation on an ineligible element whose completion would not result in
* the insertion of an ineligible element into the list may throw an
* exception or it may succeed, at the option of the implementation.
* Such exceptions are marked as "optional" in the specification for this
* interface.
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @author Neal Gafter
* @see Collection
* @see Set
* @see ArrayList
* @see LinkedList
* @see Vector
* @see Arrays#asList(Object[])
* @see Collections#nCopies(int, Object)
* @see Collections#EMPTY_LIST
* @see AbstractList
* @see AbstractSequentialList
* @since 1.2
*/

public interface List<E> extends Collection<E> {
// Query Operations

/**
* Returns the number of elements in this list. If this list contains
* more than <tt>Integer.MAX_VALUE</tt> elements, returns
* <tt>Integer.MAX_VALUE</tt>.
*
* @return the number of elements in this list
*/
int size();

/**
* Returns <tt>true</tt> if this list contains no elements.
*
* @return <tt>true</tt> if this list contains no elements
*/
boolean isEmpty();

/**
* Returns <tt>true</tt> if this list contains the specified element.
* More formally, returns <tt>true</tt> if and only if this list contains
* at least one element <tt>e</tt> such that
* <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
*
* @param o element whose presence in this list is to be tested
* @return <tt>true</tt> if this list contains the specified element
* @throws ClassCastException if the type of the specified element
* is incompatible with this list (optional)
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements (optional)
*/
boolean contains(Object o);

/**
* Returns an iterator over the elements in this list in proper sequence.
*
* @return an iterator over the elements in this list in proper sequence
*/
Iterator<E> iterator();

// Modification Operations

/**
* Appends the specified element to the end of this list (optional
* operation).
*
* <p>Lists that support this operation may place limitations on what
* elements may be added to this list. In particular, some
* lists will refuse to add null elements, and others will impose
* restrictions on the type of elements that may be added. List
* classes should clearly specify in their documentation any restrictions
* on what elements may be added.
*
* @param e element to be appended to this list
* @return <tt>true</tt> (as specified by {@link Collection#add})
* @throws UnsupportedOperationException if the <tt>add</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements
* @throws IllegalArgumentException if some property of this element
* prevents it from being added to this list
*/
boolean add(E e);

/**
* Removes the first occurrence of the specified element from this list,
* if it is present (optional operation). If this list does not contain
* the element, it is unchanged. More formally, removes the element with
* the lowest index <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>
* (if such an element exists). Returns <tt>true</tt> if this list
* contained the specified element (or equivalently, if this list changed
* as a result of the call).
*
* @param o element to be removed from this list, if present
* @return <tt>true</tt> if this list contained the specified element
* @throws ClassCastException if the type of the specified element
* is incompatible with this list (optional)
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements (optional)
* @throws UnsupportedOperationException if the <tt>remove</tt> operation
* is not supported by this list
*/
boolean remove(Object o);


// Bulk Modification Operations

/**
* Returns <tt>true</tt> if this list contains all of the elements of the
* specified collection.
*
* @param c collection to be checked for containment in this list
* @return <tt>true</tt> if this list contains all of the elements of the
* specified collection
* @throws ClassCastException if the types of one or more elements
* in the specified collection are incompatible with this
* list (optional)
* @throws NullPointerException if the specified collection contains one
* or more null elements and this list does not permit null
* elements (optional), or if the specified collection is null
* @see #contains(Object)
*/
boolean containsAll(Collection<?> c);

/**
* Appends all of the elements in the specified collection to the end of
* this list, in the order that they are returned by the specified
* collection's iterator (optional operation). The behavior of this
* operation is undefined if the specified collection is modified while
* the operation is in progress. (Note that this will occur if the
* specified collection is this list, and it's nonempty.)
*
* @param c collection containing elements to be added to this list
* @return <tt>true</tt> if this list changed as a result of the call
* @throws UnsupportedOperationException if the <tt>addAll</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of an element of the specified
* collection prevents it from being added to this list
* @throws NullPointerException if the specified collection contains one
* or more null elements and this list does not permit null
* elements, or if the specified collection is null
* @throws IllegalArgumentException if some property of an element of the
* specified collection prevents it from being added to this list
* @see #add(Object)
*/
boolean addAll(Collection<? extends E> c);

/**
* Inserts all of the elements in the specified collection into this
* list at the specified position (optional operation). Shifts the
* element currently at that position (if any) and any subsequent
* elements to the right (increases their indices). The new elements
* will appear in this list in the order that they are returned by the
* specified collection's iterator. The behavior of this operation is
* undefined if the specified collection is modified while the
* operation is in progress. (Note that this will occur if the specified
* collection is this list, and it's nonempty.)
*
* @param index index at which to insert the first element from the
* specified collection
* @param c collection containing elements to be added to this list
* @return <tt>true</tt> if this list changed as a result of the call
* @throws UnsupportedOperationException if the <tt>addAll</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of an element of the specified
* collection prevents it from being added to this list
* @throws NullPointerException if the specified collection contains one
* or more null elements and this list does not permit null
* elements, or if the specified collection is null
* @throws IllegalArgumentException if some property of an element of the
* specified collection prevents it from being added to this list
* @throws IndexOutOfBoundsException if the index is out of range
* (<tt>index &lt; 0 || index &gt; size()</tt>)
*/
boolean addAll(int index, Collection<? extends E> c);

/**
* Removes from this list all of its elements that are contained in the
* specified collection (optional operation).
*
* @param c collection containing elements to be removed from this list
* @return <tt>true</tt> if this list changed as a result of the call
* @throws UnsupportedOperationException if the <tt>removeAll</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of an element of this list
* is incompatible with the specified collection (optional)
* @throws NullPointerException if this list contains a null element and the
* specified collection does not permit null elements (optional),
* or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)
*/
boolean removeAll(Collection<?> c);

/**
* Retains only the elements in this list that are contained in the
* specified collection (optional operation). In other words, removes
* from this list all of its elements that are not contained in the
* specified collection.
*
* @param c collection containing elements to be retained in this list
* @return <tt>true</tt> if this list changed as a result of the call
* @throws UnsupportedOperationException if the <tt>retainAll</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of an element of this list
* is incompatible with the specified collection (optional)
* @throws NullPointerException if this list contains a null element and the
* specified collection does not permit null elements (optional),
* or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)
*/
boolean retainAll(Collection<?> c);

/**
* Removes all of the elements from this list (optional operation).
* The list will be empty after this call returns.
*
* @throws UnsupportedOperationException if the <tt>clear</tt> operation
* is not supported by this list
*/
void clear();


// Comparison and hashing

/**
* Compares the specified object with this list for equality. Returns
* <tt>true</tt> if and only if the specified object is also a list, both
* lists have the same size, and all corresponding pairs of elements in
* the two lists are <i>equal</i>. (Two elements <tt>e1</tt> and
* <tt>e2</tt> are <i>equal</i> if <tt>(e1==null ? e2==null :
* e1.equals(e2))</tt>.) In other words, two lists are defined to be
* equal if they contain the same elements in the same order. This
* definition ensures that the equals method works properly across
* different implementations of the <tt>List</tt> interface.
*
* @param o the object to be compared for equality with this list
* @return <tt>true</tt> if the specified object is equal to this list
*/
boolean equals(Object o);

/**
* Returns the hash code value for this list. The hash code of a list
* is defined to be the result of the following calculation:
* <pre>
* int hashCode = 1;
* for (E e : list)
* hashCode = 31*hashCode + (e==null ? 0 : e.hashCode());
* </pre>
* This ensures that <tt>list1.equals(list2)</tt> implies that
* <tt>list1.hashCode()==list2.hashCode()</tt> for any two lists,
* <tt>list1</tt> and <tt>list2</tt>, as required by the general
* contract of {@link Object#hashCode}.
*
* @return the hash code value for this list
* @see Object#equals(Object)
* @see #equals(Object)
*/
int hashCode();


// Positional Access Operations

/**
* Returns the element at the specified position in this list.
*
* @param index index of the element to return
* @return the element at the specified position in this list
* @throws IndexOutOfBoundsException if the index is out of range
* (<tt>index &lt; 0 || index &gt;= size()</tt>)
*/
E get(int index);

/**
* Replaces the element at the specified position in this list with the
* specified element (optional operation).
*
* @param index index of the element to replace
* @param element element to be stored at the specified position
* @return the element previously at the specified position
* @throws UnsupportedOperationException if the <tt>set</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws NullPointerException if the specified element is null and
* this list does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this list
* @throws IndexOutOfBoundsException if the index is out of range
* (<tt>index &lt; 0 || index &gt;= size()</tt>)
*/
E set(int index, E element);

/**
* Inserts the specified element at the specified position in this list
* (optional operation). Shifts the element currently at that position
* (if any) and any subsequent elements to the right (adds one to their
* indices).
*
* @param index index at which the specified element is to be inserted
* @param element element to be inserted
* @throws UnsupportedOperationException if the <tt>add</tt> operation
* is not supported by this list
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this list
* @throws NullPointerException if the specified element is null and
* this list does not permit null elements
* @throws IllegalArgumentException if some property of the specified
* element prevents it from being added to this list
* @throws IndexOutOfBoundsException if the index is out of range
* (<tt>index &lt; 0 || index &gt; size()</tt>)
*/
void add(int index, E element);

/**
* Removes the element at the specified position in this list (optional
* operation). Shifts any subsequent elements to the left (subtracts one
* from their indices). Returns the element that was removed from the
* list.
*
* @param index the index of the element to be removed
* @return the element previously at the specified position
* @throws UnsupportedOperationException if the <tt>remove</tt> operation
* is not supported by this list
* @throws IndexOutOfBoundsException if the index is out of range
* (<tt>index &lt; 0 || index &gt;= size()</tt>)
*/
E remove(int index);


// Search Operations

/**
* Returns the index of the first occurrence of the specified element
* in this list, or -1 if this list does not contain the element.
* More formally, returns the lowest index <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
* or -1 if there is no such index.
*
* @param o element to search for
* @return the index of the first occurrence of the specified element in
* this list, or -1 if this list does not contain the element
* @throws ClassCastException if the type of the specified element
* is incompatible with this list (optional)
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements (optional)
*/
int indexOf(Object o);

/**
* Returns the index of the last occurrence of the specified element
* in this list, or -1 if this list does not contain the element.
* More formally, returns the highest index <tt>i</tt> such that
* <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
* or -1 if there is no such index.
*
* @param o element to search for
* @return the index of the last occurrence of the specified element in
* this list, or -1 if this list does not contain the element
* @throws ClassCastException if the type of the specified element
* is incompatible with this list (optional)
* @throws NullPointerException if the specified element is null and this
* list does not permit null elements (optional)
*/
int lastIndexOf(Object o);


// List Iterators

/**
* Returns a list iterator over the elements in this list (in proper
* sequence).
*
* @return a list iterator over the elements in this list (in proper
* sequence)
*/
ListIterator<E> listIterator();

/**
* Returns a list iterator over the elements in this list (in proper
* sequence), starting at the specified position in the list.
* The specified index indicates the first element that would be
* returned by an initial call to {@link ListIterator#next next}.
* An initial call to {@link ListIterator#previous previous} would
* return the element with the specified index minus one.
*
* @param index index of the first element to be returned from the
* list iterator (by a call to {@link ListIterator#next next})
* @return a list iterator over the elements in this list (in proper
* sequence), starting at the specified position in the list
* @throws IndexOutOfBoundsException if the index is out of range
* ({@code index < 0 || index > size()})
*/
ListIterator<E> listIterator(int index);

// View

/**
* Returns a view of the portion of this list between the specified
* <tt>fromIndex</tt>, inclusive, and <tt>toIndex</tt>, exclusive. (If
* <tt>fromIndex</tt> and <tt>toIndex</tt> are equal, the returned list is
* empty.) The returned list is backed by this list, so non-structural
* changes in the returned list are reflected in this list, and vice-versa.
* The returned list supports all of the optional list operations supported
* by this list.<p>
*
* This method eliminates the need for explicit range operations (of
* the sort that commonly exist for arrays). Any operation that expects
* a list can be used as a range operation by passing a subList view
* instead of a whole list. For example, the following idiom
* removes a range of elements from a list:
* <pre>
* list.subList(from, to).clear();
* </pre>
* Similar idioms may be constructed for <tt>indexOf</tt> and
* <tt>lastIndexOf</tt>, and all of the algorithms in the
* <tt>Collections</tt> class can be applied to a subList.<p>
*
* The semantics of the list returned by this method become undefined if
* the backing list (i.e., this list) is <i>structurally modified</i> in
* any way other than via the returned list. (Structural modifications are
* those that change the size of this list, or otherwise perturb it in such
* a fashion that iterations in progress may yield incorrect results.)
*
* @param fromIndex low endpoint (inclusive) of the subList
* @param toIndex high endpoint (exclusive) of the subList
* @return a view of the specified range within this list
* @throws IndexOutOfBoundsException for an illegal endpoint index value
* (<tt>fromIndex &lt; 0 || toIndex &gt; size ||
* fromIndex &gt; toIndex</tt>)
*/
List<E> subList(int fromIndex, int toIndex);
}


/*
* Copyright 1994-1998 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Thrown by the <code>nextElement</code> method of an
* <code>Enumeration</code> to indicate that there are no more
* elements in the enumeration.
*
* @author unascribed
* @see java.util.Enumeration
* @see java.util.Enumeration#nextElement()
* @since JDK1.0
*/
public
class NoSuchElementException extends RuntimeException {
/**
* Constructs a <code>NoSuchElementException</code> with <tt>null</tt>
* as its error message string.
*/
public NoSuchElementException() {
super();
}

/**
* Constructs a <code>NoSuchElementException</code>, saving a reference
* to the error message string <tt>s</tt> for later retrieval by the
* <tt>getMessage</tt> method.
*
* @param s the detail message.
*/
public NoSuchElementException(String s) {
super(s);
}
}


/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/licenses/publicdomain
*/

package javaUtilEx;

/**
* A collection designed for holding elements prior to processing.
* Besides basic {@link java.util.Collection Collection} operations,
* queues provide additional insertion, extraction, and inspection
* operations. Each of these methods exists in two forms: one throws
* an exception if the operation fails, the other returns a special
* value (either <tt>null</tt> or <tt>false</tt>, depending on the
* operation). The latter form of the insert operation is designed
* specifically for use with capacity-restricted <tt>Queue</tt>
* implementations; in most implementations, insert operations cannot
* fail.
*
* <p>
* <table BORDER CELLPADDING=3 CELLSPACING=1>
* <tr>
* <td></td>
* <td ALIGN=CENTER><em>Throws exception</em></td>
* <td ALIGN=CENTER><em>Returns special value</em></td>
* </tr>
* <tr>
* <td><b>Insert</b></td>
* <td>{@link #add add(e)}</td>
* <td>{@link #offer offer(e)}</td>
* </tr>
* <tr>
* <td><b>Remove</b></td>
* <td>{@link #remove remove()}</td>
* <td>{@link #poll poll()}</td>
* </tr>
* <tr>
* <td><b>Examine</b></td>
* <td>{@link #element element()}</td>
* <td>{@link #peek peek()}</td>
* </tr>
* </table>
*
* <p>Queues typically, but do not necessarily, order elements in a
* FIFO (first-in-first-out) manner. Among the exceptions are
* priority queues, which order elements according to a supplied
* comparator, or the elements' natural ordering, and LIFO queues (or
* stacks) which order the elements LIFO (last-in-first-out).
* Whatever the ordering used, the <em>head</em> of the queue is that
* element which would be removed by a call to {@link #remove() } or
* {@link #poll()}. In a FIFO queue, all new elements are inserted at
* the <em> tail</em> of the queue. Other kinds of queues may use
* different placement rules. Every <tt>Queue</tt> implementation
* must specify its ordering properties.
*
* <p>The {@link #offer offer} method inserts an element if possible,
* otherwise returning <tt>false</tt>. This differs from the {@link
* java.util.Collection#add Collection.add} method, which can fail to
* add an element only by throwing an unchecked exception. The
* <tt>offer</tt> method is designed for use when failure is a normal,
* rather than exceptional occurrence, for example, in fixed-capacity
* (or &quot;bounded&quot;) queues.
*
* <p>The {@link #remove()} and {@link #poll()} methods remove and
* return the head of the queue.
* Exactly which element is removed from the queue is a
* function of the queue's ordering policy, which differs from
* implementation to implementation. The <tt>remove()</tt> and
* <tt>poll()</tt> methods differ only in their behavior when the
* queue is empty: the <tt>remove()</tt> method throws an exception,
* while the <tt>poll()</tt> method returns <tt>null</tt>.
*
* <p>The {@link #element()} and {@link #peek()} methods return, but do
* not remove, the head of the queue.
*
* <p>The <tt>Queue</tt> interface does not define the <i>blocking queue
* methods</i>, which are common in concurrent programming. These methods,
* which wait for elements to appear or for space to become available, are
* defined in the {@link java.util.concurrent.BlockingQueue} interface, which
* extends this interface.
*
* <p><tt>Queue</tt> implementations generally do not allow insertion
* of <tt>null</tt> elements, although some implementations, such as
* {@link LinkedList}, do not prohibit insertion of <tt>null</tt>.
* Even in the implementations that permit it, <tt>null</tt> should
* not be inserted into a <tt>Queue</tt>, as <tt>null</tt> is also
* used as a special return value by the <tt>poll</tt> method to
* indicate that the queue contains no elements.
*
* <p><tt>Queue</tt> implementations generally do not define
* element-based versions of methods <tt>equals</tt> and
* <tt>hashCode</tt> but instead inherit the identity based versions
* from class <tt>Object</tt>, because element-based equality is not
* always well-defined for queues with the same elements but different
* ordering properties.
*
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @see java.util.Collection
* @see LinkedList
* @see PriorityQueue
* @see java.util.concurrent.LinkedBlockingQueue
* @see java.util.concurrent.BlockingQueue
* @see java.util.concurrent.ArrayBlockingQueue
* @see java.util.concurrent.LinkedBlockingQueue
* @see java.util.concurrent.PriorityBlockingQueue
* @since 1.5
* @author Doug Lea
* @param <E> the type of elements held in this collection
*/
public interface Queue<E> extends Collection<E> {
/**
* Inserts the specified element into this queue if it is possible to do so
* immediately without violating capacity restrictions, returning
* <tt>true</tt> upon success and throwing an <tt>IllegalStateException</tt>
* if no space is currently available.
*
* @param e the element to add
* @return <tt>true</tt> (as specified by {@link Collection#add})
* @throws IllegalStateException if the element cannot be added at this
* time due to capacity restrictions
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this queue
* @throws NullPointerException if the specified element is null and
* this queue does not permit null elements
* @throws IllegalArgumentException if some property of this element
* prevents it from being added to this queue
*/
boolean add(E e);

/**
* Inserts the specified element into this queue if it is possible to do
* so immediately without violating capacity restrictions.
* When using a capacity-restricted queue, this method is generally
* preferable to {@link #add}, which can fail to insert an element only
* by throwing an exception.
*
* @param e the element to add
* @return <tt>true</tt> if the element was added to this queue, else
* <tt>false</tt>
* @throws ClassCastException if the class of the specified element
* prevents it from being added to this queue
* @throws NullPointerException if the specified element is null and
* this queue does not permit null elements
* @throws IllegalArgumentException if some property of this element
* prevents it from being added to this queue
*/
boolean offer(E e);

/**
* Retrieves and removes the head of this queue. This method differs
* from {@link #poll poll} only in that it throws an exception if this
* queue is empty.
*
* @return the head of this queue
* @throws NoSuchElementException if this queue is empty
*/
E remove();

/**
* Retrieves and removes the head of this queue,
* or returns <tt>null</tt> if this queue is empty.
*
* @return the head of this queue, or <tt>null</tt> if this queue is empty
*/
E poll();

/**
* Retrieves, but does not remove, the head of this queue. This method
* differs from {@link #peek peek} only in that it throws an exception
* if this queue is empty.
*
* @return the head of this queue
* @throws NoSuchElementException if this queue is empty
*/
E element();

/**
* Retrieves, but does not remove, the head of this queue,
* or returns <tt>null</tt> if this queue is empty.
*
* @return the head of this queue, or <tt>null</tt> if this queue is empty
*/
E peek();
}


/*
* Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Marker interface used by <tt>List</tt> implementations to indicate that
* they support fast (generally constant time) random access. The primary
* purpose of this interface is to allow generic algorithms to alter their
* behavior to provide good performance when applied to either random or
* sequential access lists.
*
* <p>The best algorithms for manipulating random access lists (such as
* <tt>ArrayList</tt>) can produce quadratic behavior when applied to
* sequential access lists (such as <tt>LinkedList</tt>). Generic list
* algorithms are encouraged to check whether the given list is an
* <tt>instanceof</tt> this interface before applying an algorithm that would
* provide poor performance if it were applied to a sequential access list,
* and to alter their behavior if necessary to guarantee acceptable
* performance.
*
* <p>It is recognized that the distinction between random and sequential
* access is often fuzzy. For example, some <tt>List</tt> implementations
* provide asymptotically linear access times if they get huge, but constant
* access times in practice. Such a <tt>List</tt> implementation
* should generally implement this interface. As a rule of thumb, a
* <tt>List</tt> implementation should implement this interface if,
* for typical instances of the class, this loop:
* <pre>
* for (int i=0, n=list.size(); i &lt; n; i++)
* list.get(i);
* </pre>
* runs faster than this loop:
* <pre>
* for (Iterator i=list.iterator(); i.hasNext(); )
* i.next();
* </pre>
*
* <p>This interface is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @since 1.4
*/
public interface RandomAccess {
}


package javaUtilEx;

public class Random {
static String[] args;
static int index = 0;

public static int random() {
String string = args[index];
index++;
return string.length();
}
}


/*
* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/

package javaUtilEx;

/**
* Thrown to indicate that the requested operation is not supported.<p>
*
* This class is a member of the
* <a href="{@docRoot}/../technotes/guides/collections/index.html">
* Java Collections Framework</a>.
*
* @author Josh Bloch
* @since 1.2
*/
public class UnsupportedOperationException extends RuntimeException {
/**
* Constructs an UnsupportedOperationException with no detail message.
*/
public UnsupportedOperationException() {
}

/**
* Constructs an UnsupportedOperationException with the specified
* detail message.
*
* @param message the detail message
*/
public UnsupportedOperationException(String message) {
super(message);
}

/**
* Constructs a new exception with the specified detail message and
* cause.
*
* <p>Note that the detail message associated with <code>cause</code> is
* <i>not</i> automatically incorporated in this exception's detail
* message.
*
* @param message the detail message (which is saved for later retrieval
* by the {@link Throwable#getMessage()} method).
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value
* is permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public UnsupportedOperationException(String message, Throwable cause) {
super(message, cause);
}

/**
* Constructs a new exception with the specified cause and a detail
* message of <tt>(cause==null ? null : cause.toString())</tt> (which
* typically contains the class and detail message of <tt>cause</tt>).
* This constructor is useful for exceptions that are little more than
* wrappers for other throwables (for example, {@link
* java.security.PrivilegedActionException}).
*
* @param cause the cause (which is saved for later retrieval by the
* {@link Throwable#getCause()} method). (A <tt>null</tt> value is
* permitted, and indicates that the cause is nonexistent or
* unknown.)
* @since 1.5
*/
public UnsupportedOperationException(Throwable cause) {
super(cause);
}

static final long serialVersionUID = -1242599979055084673L;
}


(1) JBCToGraph (SOUND transformation)

Constructed TerminationGraph.

(2) Obligation:

Termination Graph based on JBC Program:
javaUtilEx.juLinkedListCreateGetLast.main([Ljava/lang/String;)V: Graph of 187 nodes with 0 SCCs.

javaUtilEx.juLinkedListCreateGetLast.createList(I)LjavaUtilEx/LinkedList;: Graph of 506 nodes with 1 SCC.


(3) TerminationGraphToSCCProof (SOUND transformation)

Splitted TerminationGraph to 1 SCCs.

(4) Obligation:

SCC of termination graph based on JBC Program.
SCC contains nodes from the following methods: javaUtilEx.juLinkedListCreateGetLast.createList(I)LjavaUtilEx/LinkedList;
SCC calls the following helper methods:
Performed SCC analyses: UsedFieldsAnalysis

(5) SCCToIDPv1Proof (SOUND transformation)

Transformed FIGraph SCCs to IDPs. Log:

Generated 378 rules for P and 0 rules for R.


P rules:
4133_0_createList_LE(EOS(STATIC_4133), i1272, i1272) → 4135_0_createList_LE(EOS(STATIC_4135), i1272, i1272)
4135_0_createList_LE(EOS(STATIC_4135), i1272, i1272) → 4137_0_createList_Load(EOS(STATIC_4137), i1272) | >(i1272, 0)
4137_0_createList_Load(EOS(STATIC_4137), i1272) → 4139_0_createList_New(EOS(STATIC_4139), i1272)
4139_0_createList_New(EOS(STATIC_4139), i1272) → 4141_0_createList_Duplicate(EOS(STATIC_4141), i1272)
4141_0_createList_Duplicate(EOS(STATIC_4141), i1272) → 4142_0_createList_InvokeMethod(EOS(STATIC_4142), i1272)
4142_0_createList_InvokeMethod(EOS(STATIC_4142), i1272) → 4145_0_random_FieldAccess(EOS(STATIC_4145), i1272)
4145_0_random_FieldAccess(EOS(STATIC_4145), i1272) → 4148_0_random_FieldAccess(EOS(STATIC_4148), i1272, java.lang.Object(ARRAY(i59)))
4148_0_random_FieldAccess(EOS(STATIC_4148), i1272, java.lang.Object(ARRAY(i59))) → 4150_0_random_ArrayAccess(EOS(STATIC_4150), i1272, java.lang.Object(ARRAY(i59)), i1259)
4150_0_random_ArrayAccess(EOS(STATIC_4150), i1272, java.lang.Object(ARRAY(i59)), i1293) → 4153_0_random_ArrayAccess(EOS(STATIC_4153), i1272, java.lang.Object(ARRAY(i59)), i1293)
4153_0_random_ArrayAccess(EOS(STATIC_4153), i1272, java.lang.Object(ARRAY(i59)), i1293) → 4155_0_random_ArrayAccess(EOS(STATIC_4155), i1272, java.lang.Object(ARRAY(i59)), i1293)
4155_0_random_ArrayAccess(EOS(STATIC_4155), i1272, java.lang.Object(ARRAY(i59)), i1293) → 4158_0_random_Store(EOS(STATIC_4158), i1272, o9751) | <(i1293, i59)
4158_0_random_Store(EOS(STATIC_4158), i1272, o9751) → 4162_0_random_FieldAccess(EOS(STATIC_4162), i1272, o9751)
4162_0_random_FieldAccess(EOS(STATIC_4162), i1272, o9751) → 4166_0_random_ConstantStackPush(EOS(STATIC_4166), i1272, o9751, i1293)
4166_0_random_ConstantStackPush(EOS(STATIC_4166), i1272, o9751, i1293) → 4170_0_random_IntArithmetic(EOS(STATIC_4170), i1272, o9751, i1293, 1)
4170_0_random_IntArithmetic(EOS(STATIC_4170), i1272, o9751, i1293, matching1) → 4175_0_random_FieldAccess(EOS(STATIC_4175), i1272, o9751, +(i1293, 1)) | &&(>=(i1293, 0), =(matching1, 1))
4175_0_random_FieldAccess(EOS(STATIC_4175), i1272, o9751, i1296) → 4179_0_random_Load(EOS(STATIC_4179), i1272, o9751)
4179_0_random_Load(EOS(STATIC_4179), i1272, o9751) → 4184_0_random_InvokeMethod(EOS(STATIC_4184), i1272, o9751)
4184_0_random_InvokeMethod(EOS(STATIC_4184), i1272, java.lang.Object(o9757sub)) → 4192_0_random_InvokeMethod(EOS(STATIC_4192), i1272, java.lang.Object(o9757sub))
4192_0_random_InvokeMethod(EOS(STATIC_4192), i1272, java.lang.Object(o9757sub)) → 4199_0_length_Load(EOS(STATIC_4199), i1272, java.lang.Object(o9757sub), java.lang.Object(o9757sub))
4199_0_length_Load(EOS(STATIC_4199), i1272, java.lang.Object(o9757sub), java.lang.Object(o9757sub)) → 4217_0_length_FieldAccess(EOS(STATIC_4217), i1272, java.lang.Object(o9757sub), java.lang.Object(o9757sub))
4217_0_length_FieldAccess(EOS(STATIC_4217), i1272, java.lang.Object(java.lang.String(o9857sub, i1305)), java.lang.Object(java.lang.String(o9857sub, i1305))) → 4222_0_length_FieldAccess(EOS(STATIC_4222), i1272, java.lang.Object(java.lang.String(o9857sub, i1305)), java.lang.Object(java.lang.String(o9857sub, i1305))) | &&(>=(i1305, 0), >=(i1306, 0))
4222_0_length_FieldAccess(EOS(STATIC_4222), i1272, java.lang.Object(java.lang.String(o9857sub, i1305)), java.lang.Object(java.lang.String(o9857sub, i1305))) → 4228_0_length_Return(EOS(STATIC_4228), i1272, java.lang.Object(java.lang.String(o9857sub, i1305)))
4228_0_length_Return(EOS(STATIC_4228), i1272, java.lang.Object(java.lang.String(o9857sub, i1305))) → 4235_0_random_Return(EOS(STATIC_4235), i1272)
4235_0_random_Return(EOS(STATIC_4235), i1272) → 4238_0_createList_InvokeMethod(EOS(STATIC_4238), i1272)
4238_0_createList_InvokeMethod(EOS(STATIC_4238), i1272) → 4243_0_<init>_Load(EOS(STATIC_4243), i1272)
4243_0_<init>_Load(EOS(STATIC_4243), i1272) → 4250_0_<init>_InvokeMethod(EOS(STATIC_4250), i1272)
4250_0_<init>_InvokeMethod(EOS(STATIC_4250), i1272) → 4255_0_<init>_Load(EOS(STATIC_4255), i1272)
4255_0_<init>_Load(EOS(STATIC_4255), i1272) → 4260_0_<init>_Load(EOS(STATIC_4260), i1272)
4260_0_<init>_Load(EOS(STATIC_4260), i1272) → 4264_0_<init>_FieldAccess(EOS(STATIC_4264), i1272)
4264_0_<init>_FieldAccess(EOS(STATIC_4264), i1272) → 4269_0_<init>_Return(EOS(STATIC_4269), i1272)
4269_0_<init>_Return(EOS(STATIC_4269), i1272) → 4274_0_createList_InvokeMethod(EOS(STATIC_4274), i1272)
4274_0_createList_InvokeMethod(EOS(STATIC_4274), i1272) → 4279_0_addLast_Load(EOS(STATIC_4279), i1272)
4279_0_addLast_Load(EOS(STATIC_4279), i1272) → 4288_0_addLast_Load(EOS(STATIC_4288), i1272)
4288_0_addLast_Load(EOS(STATIC_4288), i1272) → 4293_0_addLast_Load(EOS(STATIC_4293), i1272)
4293_0_addLast_Load(EOS(STATIC_4293), i1272) → 4298_0_addLast_FieldAccess(EOS(STATIC_4298), i1272)
4298_0_addLast_FieldAccess(EOS(STATIC_4298), i1272) → 4302_0_addLast_InvokeMethod(EOS(STATIC_4302), i1272)
4302_0_addLast_InvokeMethod(EOS(STATIC_4302), i1272) → 4308_0_addBefore_New(EOS(STATIC_4308), i1272)
4308_0_addBefore_New(EOS(STATIC_4308), i1272) → 4316_0_addBefore_Duplicate(EOS(STATIC_4316), i1272)
4316_0_addBefore_Duplicate(EOS(STATIC_4316), i1272) → 4321_0_addBefore_Load(EOS(STATIC_4321), i1272)
4321_0_addBefore_Load(EOS(STATIC_4321), i1272) → 4325_0_addBefore_Load(EOS(STATIC_4325), i1272)
4325_0_addBefore_Load(EOS(STATIC_4325), i1272) → 4327_0_addBefore_Load(EOS(STATIC_4327), i1272)
4327_0_addBefore_Load(EOS(STATIC_4327), i1272) → 4328_0_addBefore_FieldAccess(EOS(STATIC_4328), i1272)
4328_0_addBefore_FieldAccess(EOS(STATIC_4328), i1272) → 4330_0_addBefore_FieldAccess(EOS(STATIC_4330), i1272)
4328_0_addBefore_FieldAccess(EOS(STATIC_4328), i1272) → 4331_0_addBefore_FieldAccess(EOS(STATIC_4331), i1272)
4330_0_addBefore_FieldAccess(EOS(STATIC_4330), i1272) → 4332_0_addBefore_FieldAccess(EOS(STATIC_4332), i1272)
4330_0_addBefore_FieldAccess(EOS(STATIC_4330), i1272) → 4333_0_addBefore_FieldAccess(EOS(STATIC_4333), i1272)
4332_0_addBefore_FieldAccess(EOS(STATIC_4332), i1272) → 4336_0_addBefore_InvokeMethod(EOS(STATIC_4336), i1272)
4336_0_addBefore_InvokeMethod(EOS(STATIC_4336), i1272) → 4340_0_<init>_Load(EOS(STATIC_4340), i1272)
4340_0_<init>_Load(EOS(STATIC_4340), i1272) → 4344_0_<init>_InvokeMethod(EOS(STATIC_4344), i1272)
4344_0_<init>_InvokeMethod(EOS(STATIC_4344), i1272) → 4348_0_<init>_Load(EOS(STATIC_4348), i1272)
4348_0_<init>_Load(EOS(STATIC_4348), i1272) → 4352_0_<init>_Load(EOS(STATIC_4352), i1272)
4352_0_<init>_Load(EOS(STATIC_4352), i1272) → 4356_0_<init>_FieldAccess(EOS(STATIC_4356), i1272)
4356_0_<init>_FieldAccess(EOS(STATIC_4356), i1272) → 4360_0_<init>_Load(EOS(STATIC_4360), i1272)
4360_0_<init>_Load(EOS(STATIC_4360), i1272) → 4364_0_<init>_Load(EOS(STATIC_4364), i1272)
4364_0_<init>_Load(EOS(STATIC_4364), i1272) → 4368_0_<init>_FieldAccess(EOS(STATIC_4368), i1272)
4368_0_<init>_FieldAccess(EOS(STATIC_4368), i1272) → 4372_0_<init>_Load(EOS(STATIC_4372), i1272)
4372_0_<init>_Load(EOS(STATIC_4372), i1272) → 4377_0_<init>_Load(EOS(STATIC_4377), i1272)
4377_0_<init>_Load(EOS(STATIC_4377), i1272) → 4386_0_<init>_FieldAccess(EOS(STATIC_4386), i1272)
4386_0_<init>_FieldAccess(EOS(STATIC_4386), i1272) → 4396_0_<init>_Return(EOS(STATIC_4396), i1272)
4396_0_<init>_Return(EOS(STATIC_4396), i1272) → 4407_0_addBefore_Store(EOS(STATIC_4407), i1272)
4407_0_addBefore_Store(EOS(STATIC_4407), i1272) → 4418_0_addBefore_Load(EOS(STATIC_4418), i1272)
4418_0_addBefore_Load(EOS(STATIC_4418), i1272) → 4429_0_addBefore_FieldAccess(EOS(STATIC_4429), i1272)
4429_0_addBefore_FieldAccess(EOS(STATIC_4429), i1272) → 4440_0_addBefore_Load(EOS(STATIC_4440), i1272)
4440_0_addBefore_Load(EOS(STATIC_4440), i1272) → 4452_0_addBefore_FieldAccess(EOS(STATIC_4452), i1272)
4452_0_addBefore_FieldAccess(EOS(STATIC_4452), i1272) → 4467_0_addBefore_FieldAccess(EOS(STATIC_4467), i1272)
4452_0_addBefore_FieldAccess(EOS(STATIC_4452), i1272) → 4468_0_addBefore_FieldAccess(EOS(STATIC_4468), i1272)
4467_0_addBefore_FieldAccess(EOS(STATIC_4467), i1272) → 4485_0_addBefore_FieldAccess(EOS(STATIC_4485), i1272)
4485_0_addBefore_FieldAccess(EOS(STATIC_4485), i1272) → 4542_0_addBefore_Load(EOS(STATIC_4542), i1272)
4542_0_addBefore_Load(EOS(STATIC_4542), i1272) → 4557_0_addBefore_FieldAccess(EOS(STATIC_4557), i1272)
4557_0_addBefore_FieldAccess(EOS(STATIC_4557), i1272) → 4565_0_addBefore_Load(EOS(STATIC_4565), i1272)
4565_0_addBefore_Load(EOS(STATIC_4565), i1272) → 4570_0_addBefore_FieldAccess(EOS(STATIC_4570), i1272)
4570_0_addBefore_FieldAccess(EOS(STATIC_4570), i1272) → 4576_0_addBefore_FieldAccess(EOS(STATIC_4576), i1272)
4570_0_addBefore_FieldAccess(EOS(STATIC_4570), i1272) → 4577_0_addBefore_FieldAccess(EOS(STATIC_4577), i1272)
4576_0_addBefore_FieldAccess(EOS(STATIC_4576), i1272) → 4585_0_addBefore_FieldAccess(EOS(STATIC_4585), i1272)
4576_0_addBefore_FieldAccess(EOS(STATIC_4576), i1272) → 4586_0_addBefore_FieldAccess(EOS(STATIC_4586), i1272)
4585_0_addBefore_FieldAccess(EOS(STATIC_4585), i1272) → 4596_0_addBefore_Load(EOS(STATIC_4596), i1272)
4596_0_addBefore_Load(EOS(STATIC_4596), i1272) → 4607_0_addBefore_Duplicate(EOS(STATIC_4607), i1272)
4607_0_addBefore_Duplicate(EOS(STATIC_4607), i1272) → 4621_0_addBefore_FieldAccess(EOS(STATIC_4621), i1272)
4621_0_addBefore_FieldAccess(EOS(STATIC_4621), i1272) → 4638_0_addBefore_ConstantStackPush(EOS(STATIC_4638), i1272)
4638_0_addBefore_ConstantStackPush(EOS(STATIC_4638), i1272) → 4649_0_addBefore_IntArithmetic(EOS(STATIC_4649), i1272)
4649_0_addBefore_IntArithmetic(EOS(STATIC_4649), i1272) → 4660_0_addBefore_FieldAccess(EOS(STATIC_4660), i1272)
4660_0_addBefore_FieldAccess(EOS(STATIC_4660), i1272) → 4671_0_addBefore_Load(EOS(STATIC_4671), i1272)
4671_0_addBefore_Load(EOS(STATIC_4671), i1272) → 4686_0_addBefore_Duplicate(EOS(STATIC_4686), i1272)
4686_0_addBefore_Duplicate(EOS(STATIC_4686), i1272) → 4697_0_addBefore_FieldAccess(EOS(STATIC_4697), i1272)
4697_0_addBefore_FieldAccess(EOS(STATIC_4697), i1272) → 4708_0_addBefore_ConstantStackPush(EOS(STATIC_4708), i1272)
4708_0_addBefore_ConstantStackPush(EOS(STATIC_4708), i1272) → 4751_0_addBefore_IntArithmetic(EOS(STATIC_4751), i1272)
4751_0_addBefore_IntArithmetic(EOS(STATIC_4751), i1272) → 4809_0_addBefore_FieldAccess(EOS(STATIC_4809), i1272)
4809_0_addBefore_FieldAccess(EOS(STATIC_4809), i1272) → 4860_0_addBefore_Load(EOS(STATIC_4860), i1272)
4860_0_addBefore_Load(EOS(STATIC_4860), i1272) → 4886_0_addBefore_Return(EOS(STATIC_4886), i1272)
4886_0_addBefore_Return(EOS(STATIC_4886), i1272) → 4900_0_addLast_StackPop(EOS(STATIC_4900), i1272)
4900_0_addLast_StackPop(EOS(STATIC_4900), i1272) → 4911_0_addLast_Return(EOS(STATIC_4911), i1272)
4911_0_addLast_Return(EOS(STATIC_4911), i1272) → 4920_0_createList_Inc(EOS(STATIC_4920), i1272)
4920_0_createList_Inc(EOS(STATIC_4920), i1272) → 4929_0_createList_JMP(EOS(STATIC_4929), +(i1272, -1)) | >(i1272, 0)
4929_0_createList_JMP(EOS(STATIC_4929), i1736) → 4937_0_createList_Load(EOS(STATIC_4937), i1736)
4937_0_createList_Load(EOS(STATIC_4937), i1736) → 4132_0_createList_Load(EOS(STATIC_4132), i1736)
4132_0_createList_Load(EOS(STATIC_4132), i1260) → 4133_0_createList_LE(EOS(STATIC_4133), i1260, i1260)
4586_0_addBefore_FieldAccess(EOS(STATIC_4586), i1272) → 4597_0_addBefore_Load(EOS(STATIC_4597), i1272)
4597_0_addBefore_Load(EOS(STATIC_4597), i1272) → 4608_0_addBefore_Duplicate(EOS(STATIC_4608), i1272)
4608_0_addBefore_Duplicate(EOS(STATIC_4608), i1272) → 4622_0_addBefore_FieldAccess(EOS(STATIC_4622), i1272)
4622_0_addBefore_FieldAccess(EOS(STATIC_4622), i1272) → 4639_0_addBefore_ConstantStackPush(EOS(STATIC_4639), i1272)
4639_0_addBefore_ConstantStackPush(EOS(STATIC_4639), i1272) → 4650_0_addBefore_IntArithmetic(EOS(STATIC_4650), i1272)
4650_0_addBefore_IntArithmetic(EOS(STATIC_4650), i1272) → 4661_0_addBefore_FieldAccess(EOS(STATIC_4661), i1272)
4661_0_addBefore_FieldAccess(EOS(STATIC_4661), i1272) → 4672_0_addBefore_Load(EOS(STATIC_4672), i1272)
4672_0_addBefore_Load(EOS(STATIC_4672), i1272) → 4687_0_addBefore_Duplicate(EOS(STATIC_4687), i1272)
4687_0_addBefore_Duplicate(EOS(STATIC_4687), i1272) → 4698_0_addBefore_FieldAccess(EOS(STATIC_4698), i1272)
4698_0_addBefore_FieldAccess(EOS(STATIC_4698), i1272) → 4709_0_addBefore_ConstantStackPush(EOS(STATIC_4709), i1272)
4709_0_addBefore_ConstantStackPush(EOS(STATIC_4709), i1272) → 4759_0_addBefore_IntArithmetic(EOS(STATIC_4759), i1272)
4759_0_addBefore_IntArithmetic(EOS(STATIC_4759), i1272) → 4815_0_addBefore_FieldAccess(EOS(STATIC_4815), i1272)
4815_0_addBefore_FieldAccess(EOS(STATIC_4815), i1272) → 4870_0_addBefore_Load(EOS(STATIC_4870), i1272)
4870_0_addBefore_Load(EOS(STATIC_4870), i1272) → 4890_0_addBefore_Return(EOS(STATIC_4890), i1272)
4890_0_addBefore_Return(EOS(STATIC_4890), i1272) → 4901_0_addLast_StackPop(EOS(STATIC_4901), i1272)
4901_0_addLast_StackPop(EOS(STATIC_4901), i1272) → 4912_0_addLast_Return(EOS(STATIC_4912), i1272)
4912_0_addLast_Return(EOS(STATIC_4912), i1272) → 4921_0_createList_Inc(EOS(STATIC_4921), i1272)
4921_0_createList_Inc(EOS(STATIC_4921), i1272) → 4930_0_createList_JMP(EOS(STATIC_4930), +(i1272, -1)) | >(i1272, 0)
4930_0_createList_JMP(EOS(STATIC_4930), i1752) → 4938_0_createList_Load(EOS(STATIC_4938), i1752)
4938_0_createList_Load(EOS(STATIC_4938), i1752) → 4132_0_createList_Load(EOS(STATIC_4132), i1752)
4577_0_addBefore_FieldAccess(EOS(STATIC_4577), i1272) → 4587_0_addBefore_FieldAccess(EOS(STATIC_4587), i1272)
4577_0_addBefore_FieldAccess(EOS(STATIC_4577), i1272) → 4588_0_addBefore_FieldAccess(EOS(STATIC_4588), i1272)
4587_0_addBefore_FieldAccess(EOS(STATIC_4587), i1272) → 4598_0_addBefore_Load(EOS(STATIC_4598), i1272)
4598_0_addBefore_Load(EOS(STATIC_4598), i1272) → 4609_0_addBefore_Duplicate(EOS(STATIC_4609), i1272)
4609_0_addBefore_Duplicate(EOS(STATIC_4609), i1272) → 4623_0_addBefore_FieldAccess(EOS(STATIC_4623), i1272)
4623_0_addBefore_FieldAccess(EOS(STATIC_4623), i1272) → 4640_0_addBefore_ConstantStackPush(EOS(STATIC_4640), i1272)
4640_0_addBefore_ConstantStackPush(EOS(STATIC_4640), i1272) → 4651_0_addBefore_IntArithmetic(EOS(STATIC_4651), i1272)
4651_0_addBefore_IntArithmetic(EOS(STATIC_4651), i1272) → 4662_0_addBefore_FieldAccess(EOS(STATIC_4662), i1272)
4662_0_addBefore_FieldAccess(EOS(STATIC_4662), i1272) → 4673_0_addBefore_Load(EOS(STATIC_4673), i1272)
4673_0_addBefore_Load(EOS(STATIC_4673), i1272) → 4688_0_addBefore_Duplicate(EOS(STATIC_4688), i1272)
4688_0_addBefore_Duplicate(EOS(STATIC_4688), i1272) → 4699_0_addBefore_FieldAccess(EOS(STATIC_4699), i1272)
4699_0_addBefore_FieldAccess(EOS(STATIC_4699), i1272) → 4716_0_addBefore_ConstantStackPush(EOS(STATIC_4716), i1272)
4716_0_addBefore_ConstantStackPush(EOS(STATIC_4716), i1272) → 4767_0_addBefore_IntArithmetic(EOS(STATIC_4767), i1272)
4767_0_addBefore_IntArithmetic(EOS(STATIC_4767), i1272) → 4821_0_addBefore_FieldAccess(EOS(STATIC_4821), i1272)
4821_0_addBefore_FieldAccess(EOS(STATIC_4821), i1272) → 4871_0_addBefore_Load(EOS(STATIC_4871), i1272)
4871_0_addBefore_Load(EOS(STATIC_4871), i1272) → 4891_0_addBefore_Return(EOS(STATIC_4891), i1272)
4891_0_addBefore_Return(EOS(STATIC_4891), i1272) → 4902_0_addLast_StackPop(EOS(STATIC_4902), i1272)
4902_0_addLast_StackPop(EOS(STATIC_4902), i1272) → 4913_0_addLast_Return(EOS(STATIC_4913), i1272)
4913_0_addLast_Return(EOS(STATIC_4913), i1272) → 4922_0_createList_Inc(EOS(STATIC_4922), i1272)
4922_0_createList_Inc(EOS(STATIC_4922), i1272) → 4931_0_createList_JMP(EOS(STATIC_4931), +(i1272, -1)) | >(i1272, 0)
4931_0_createList_JMP(EOS(STATIC_4931), i1765) → 4939_0_createList_Load(EOS(STATIC_4939), i1765)
4939_0_createList_Load(EOS(STATIC_4939), i1765) → 4132_0_createList_Load(EOS(STATIC_4132), i1765)
4588_0_addBefore_FieldAccess(EOS(STATIC_4588), i1272) → 4599_0_addBefore_Load(EOS(STATIC_4599), i1272)
4599_0_addBefore_Load(EOS(STATIC_4599), i1272) → 4610_0_addBefore_Duplicate(EOS(STATIC_4610), i1272)
4610_0_addBefore_Duplicate(EOS(STATIC_4610), i1272) → 4629_0_addBefore_FieldAccess(EOS(STATIC_4629), i1272)
4629_0_addBefore_FieldAccess(EOS(STATIC_4629), i1272) → 4641_0_addBefore_ConstantStackPush(EOS(STATIC_4641), i1272)
4641_0_addBefore_ConstantStackPush(EOS(STATIC_4641), i1272) → 4652_0_addBefore_IntArithmetic(EOS(STATIC_4652), i1272)
4652_0_addBefore_IntArithmetic(EOS(STATIC_4652), i1272) → 4663_0_addBefore_FieldAccess(EOS(STATIC_4663), i1272)
4663_0_addBefore_FieldAccess(EOS(STATIC_4663), i1272) → 4678_0_addBefore_Load(EOS(STATIC_4678), i1272)
4678_0_addBefore_Load(EOS(STATIC_4678), i1272) → 4689_0_addBefore_Duplicate(EOS(STATIC_4689), i1272)
4689_0_addBefore_Duplicate(EOS(STATIC_4689), i1272) → 4700_0_addBefore_FieldAccess(EOS(STATIC_4700), i1272)
4700_0_addBefore_FieldAccess(EOS(STATIC_4700), i1272) → 4720_0_addBefore_ConstantStackPush(EOS(STATIC_4720), i1272)
4720_0_addBefore_ConstantStackPush(EOS(STATIC_4720), i1272) → 4776_0_addBefore_IntArithmetic(EOS(STATIC_4776), i1272)
4776_0_addBefore_IntArithmetic(EOS(STATIC_4776), i1272) → 4829_0_addBefore_FieldAccess(EOS(STATIC_4829), i1272)
4829_0_addBefore_FieldAccess(EOS(STATIC_4829), i1272) → 4875_0_addBefore_Load(EOS(STATIC_4875), i1272)
4875_0_addBefore_Load(EOS(STATIC_4875), i1272) → 4892_0_addBefore_Return(EOS(STATIC_4892), i1272)
4892_0_addBefore_Return(EOS(STATIC_4892), i1272) → 4903_0_addLast_StackPop(EOS(STATIC_4903), i1272)
4903_0_addLast_StackPop(EOS(STATIC_4903), i1272) → 4914_0_addLast_Return(EOS(STATIC_4914), i1272)
4914_0_addLast_Return(EOS(STATIC_4914), i1272) → 4923_0_createList_Inc(EOS(STATIC_4923), i1272)
4923_0_createList_Inc(EOS(STATIC_4923), i1272) → 4932_0_createList_JMP(EOS(STATIC_4932), +(i1272, -1)) | >(i1272, 0)
4932_0_createList_JMP(EOS(STATIC_4932), i1779) → 4940_0_createList_Load(EOS(STATIC_4940), i1779)
4940_0_createList_Load(EOS(STATIC_4940), i1779) → 4132_0_createList_Load(EOS(STATIC_4132), i1779)
4468_0_addBefore_FieldAccess(EOS(STATIC_4468), i1272) → 4487_0_addBefore_FieldAccess(EOS(STATIC_4487), i1272)
4487_0_addBefore_FieldAccess(EOS(STATIC_4487), i1272) → 4552_0_addBefore_Load(EOS(STATIC_4552), i1272)
4552_0_addBefore_Load(EOS(STATIC_4552), i1272) → 4558_0_addBefore_FieldAccess(EOS(STATIC_4558), i1272)
4558_0_addBefore_FieldAccess(EOS(STATIC_4558), i1272) → 4566_0_addBefore_Load(EOS(STATIC_4566), i1272)
4566_0_addBefore_Load(EOS(STATIC_4566), i1272) → 4571_0_addBefore_FieldAccess(EOS(STATIC_4571), i1272)
4571_0_addBefore_FieldAccess(EOS(STATIC_4571), i1272) → 4578_0_addBefore_Load(EOS(STATIC_4578), i1272)
4578_0_addBefore_Load(EOS(STATIC_4578), i1272) → 4589_0_addBefore_Duplicate(EOS(STATIC_4589), i1272)
4589_0_addBefore_Duplicate(EOS(STATIC_4589), i1272) → 4600_0_addBefore_FieldAccess(EOS(STATIC_4600), i1272)
4600_0_addBefore_FieldAccess(EOS(STATIC_4600), i1272) → 4611_0_addBefore_ConstantStackPush(EOS(STATIC_4611), i1272)
4611_0_addBefore_ConstantStackPush(EOS(STATIC_4611), i1272) → 4631_0_addBefore_IntArithmetic(EOS(STATIC_4631), i1272)
4631_0_addBefore_IntArithmetic(EOS(STATIC_4631), i1272) → 4642_0_addBefore_FieldAccess(EOS(STATIC_4642), i1272)
4642_0_addBefore_FieldAccess(EOS(STATIC_4642), i1272) → 4653_0_addBefore_Load(EOS(STATIC_4653), i1272)
4653_0_addBefore_Load(EOS(STATIC_4653), i1272) → 4664_0_addBefore_Duplicate(EOS(STATIC_4664), i1272)
4664_0_addBefore_Duplicate(EOS(STATIC_4664), i1272) → 4679_0_addBefore_FieldAccess(EOS(STATIC_4679), i1272)
4679_0_addBefore_FieldAccess(EOS(STATIC_4679), i1272) → 4690_0_addBefore_ConstantStackPush(EOS(STATIC_4690), i1272)
4690_0_addBefore_ConstantStackPush(EOS(STATIC_4690), i1272) → 4701_0_addBefore_IntArithmetic(EOS(STATIC_4701), i1272)
4701_0_addBefore_IntArithmetic(EOS(STATIC_4701), i1272) → 4723_0_addBefore_FieldAccess(EOS(STATIC_4723), i1272)
4723_0_addBefore_FieldAccess(EOS(STATIC_4723), i1272) → 4780_0_addBefore_Load(EOS(STATIC_4780), i1272)
4780_0_addBefore_Load(EOS(STATIC_4780), i1272) → 4832_0_addBefore_Return(EOS(STATIC_4832), i1272)
4832_0_addBefore_Return(EOS(STATIC_4832), i1272) → 4878_0_addLast_StackPop(EOS(STATIC_4878), i1272)
4878_0_addLast_StackPop(EOS(STATIC_4878), i1272) → 4893_0_addLast_Return(EOS(STATIC_4893), i1272)
4893_0_addLast_Return(EOS(STATIC_4893), i1272) → 4904_0_createList_Inc(EOS(STATIC_4904), i1272)
4904_0_createList_Inc(EOS(STATIC_4904), i1272) → 4915_0_createList_JMP(EOS(STATIC_4915), +(i1272, -1)) | >(i1272, 0)
4915_0_createList_JMP(EOS(STATIC_4915), i1689) → 4924_0_createList_Load(EOS(STATIC_4924), i1689)
4924_0_createList_Load(EOS(STATIC_4924), i1689) → 4132_0_createList_Load(EOS(STATIC_4132), i1689)
4333_0_addBefore_FieldAccess(EOS(STATIC_4333), i1272) → 4337_0_addBefore_InvokeMethod(EOS(STATIC_4337), i1272)
4337_0_addBefore_InvokeMethod(EOS(STATIC_4337), i1272) → 4341_0_<init>_Load(EOS(STATIC_4341), i1272)
4341_0_<init>_Load(EOS(STATIC_4341), i1272) → 4345_0_<init>_InvokeMethod(EOS(STATIC_4345), i1272)
4345_0_<init>_InvokeMethod(EOS(STATIC_4345), i1272) → 4349_0_<init>_Load(EOS(STATIC_4349), i1272)
4349_0_<init>_Load(EOS(STATIC_4349), i1272) → 4353_0_<init>_Load(EOS(STATIC_4353), i1272)
4353_0_<init>_Load(EOS(STATIC_4353), i1272) → 4357_0_<init>_FieldAccess(EOS(STATIC_4357), i1272)
4357_0_<init>_FieldAccess(EOS(STATIC_4357), i1272) → 4361_0_<init>_Load(EOS(STATIC_4361), i1272)
4361_0_<init>_Load(EOS(STATIC_4361), i1272) → 4365_0_<init>_Load(EOS(STATIC_4365), i1272)
4365_0_<init>_Load(EOS(STATIC_4365), i1272) → 4369_0_<init>_FieldAccess(EOS(STATIC_4369), i1272)
4369_0_<init>_FieldAccess(EOS(STATIC_4369), i1272) → 4373_0_<init>_Load(EOS(STATIC_4373), i1272)
4373_0_<init>_Load(EOS(STATIC_4373), i1272) → 4380_0_<init>_Load(EOS(STATIC_4380), i1272)
4380_0_<init>_Load(EOS(STATIC_4380), i1272) → 4387_0_<init>_FieldAccess(EOS(STATIC_4387), i1272)
4387_0_<init>_FieldAccess(EOS(STATIC_4387), i1272) → 4397_0_<init>_Return(EOS(STATIC_4397), i1272)
4397_0_<init>_Return(EOS(STATIC_4397), i1272) → 4409_0_addBefore_Store(EOS(STATIC_4409), i1272)
4409_0_addBefore_Store(EOS(STATIC_4409), i1272) → 4421_0_addBefore_Load(EOS(STATIC_4421), i1272)
4421_0_addBefore_Load(EOS(STATIC_4421), i1272) → 4431_0_addBefore_FieldAccess(EOS(STATIC_4431), i1272)
4431_0_addBefore_FieldAccess(EOS(STATIC_4431), i1272) → 4442_0_addBefore_Load(EOS(STATIC_4442), i1272)
4442_0_addBefore_Load(EOS(STATIC_4442), i1272) → 4454_0_addBefore_FieldAccess(EOS(STATIC_4454), i1272)
4454_0_addBefore_FieldAccess(EOS(STATIC_4454), i1272) → 4475_0_addBefore_Load(EOS(STATIC_4475), i1272)
4475_0_addBefore_Load(EOS(STATIC_4475), i1272) → 4488_0_addBefore_FieldAccess(EOS(STATIC_4488), i1272)
4488_0_addBefore_FieldAccess(EOS(STATIC_4488), i1272) → 4554_0_addBefore_Load(EOS(STATIC_4554), i1272)
4554_0_addBefore_Load(EOS(STATIC_4554), i1272) → 4559_0_addBefore_FieldAccess(EOS(STATIC_4559), i1272)
4559_0_addBefore_FieldAccess(EOS(STATIC_4559), i1272) → 4567_0_addBefore_Load(EOS(STATIC_4567), i1272)
4567_0_addBefore_Load(EOS(STATIC_4567), i1272) → 4572_0_addBefore_Duplicate(EOS(STATIC_4572), i1272)
4572_0_addBefore_Duplicate(EOS(STATIC_4572), i1272) → 4579_0_addBefore_FieldAccess(EOS(STATIC_4579), i1272)
4579_0_addBefore_FieldAccess(EOS(STATIC_4579), i1272) → 4590_0_addBefore_ConstantStackPush(EOS(STATIC_4590), i1272)
4590_0_addBefore_ConstantStackPush(EOS(STATIC_4590), i1272) → 4601_0_addBefore_IntArithmetic(EOS(STATIC_4601), i1272)
4601_0_addBefore_IntArithmetic(EOS(STATIC_4601), i1272) → 4612_0_addBefore_FieldAccess(EOS(STATIC_4612), i1272)
4612_0_addBefore_FieldAccess(EOS(STATIC_4612), i1272) → 4632_0_addBefore_Load(EOS(STATIC_4632), i1272)
4632_0_addBefore_Load(EOS(STATIC_4632), i1272) → 4643_0_addBefore_Duplicate(EOS(STATIC_4643), i1272)
4643_0_addBefore_Duplicate(EOS(STATIC_4643), i1272) → 4654_0_addBefore_FieldAccess(EOS(STATIC_4654), i1272)
4654_0_addBefore_FieldAccess(EOS(STATIC_4654), i1272) → 4665_0_addBefore_ConstantStackPush(EOS(STATIC_4665), i1272)
4665_0_addBefore_ConstantStackPush(EOS(STATIC_4665), i1272) → 4680_0_addBefore_IntArithmetic(EOS(STATIC_4680), i1272)
4680_0_addBefore_IntArithmetic(EOS(STATIC_4680), i1272) → 4691_0_addBefore_FieldAccess(EOS(STATIC_4691), i1272)
4691_0_addBefore_FieldAccess(EOS(STATIC_4691), i1272) → 4702_0_addBefore_Load(EOS(STATIC_4702), i1272)
4702_0_addBefore_Load(EOS(STATIC_4702), i1272) → 4725_0_addBefore_Return(EOS(STATIC_4725), i1272)
4725_0_addBefore_Return(EOS(STATIC_4725), i1272) → 4781_0_addLast_StackPop(EOS(STATIC_4781), i1272)
4781_0_addLast_StackPop(EOS(STATIC_4781), i1272) → 4833_0_addLast_Return(EOS(STATIC_4833), i1272)
4833_0_addLast_Return(EOS(STATIC_4833), i1272) → 4879_0_createList_Inc(EOS(STATIC_4879), i1272)
4879_0_createList_Inc(EOS(STATIC_4879), i1272) → 4894_0_createList_JMP(EOS(STATIC_4894), +(i1272, -1)) | >(i1272, 0)
4894_0_createList_JMP(EOS(STATIC_4894), i1640) → 4905_0_createList_Load(EOS(STATIC_4905), i1640)
4905_0_createList_Load(EOS(STATIC_4905), i1640) → 4132_0_createList_Load(EOS(STATIC_4132), i1640)
4331_0_addBefore_FieldAccess(EOS(STATIC_4331), i1272) → 4334_0_addBefore_FieldAccess(EOS(STATIC_4334), i1272)
4331_0_addBefore_FieldAccess(EOS(STATIC_4331), i1272) → 4335_0_addBefore_FieldAccess(EOS(STATIC_4335), i1272)
4334_0_addBefore_FieldAccess(EOS(STATIC_4334), i1272) → 4338_0_addBefore_InvokeMethod(EOS(STATIC_4338), i1272)
4338_0_addBefore_InvokeMethod(EOS(STATIC_4338), i1272) → 4342_0_<init>_Load(EOS(STATIC_4342), i1272)
4342_0_<init>_Load(EOS(STATIC_4342), i1272) → 4346_0_<init>_InvokeMethod(EOS(STATIC_4346), i1272)
4346_0_<init>_InvokeMethod(EOS(STATIC_4346), i1272) → 4350_0_<init>_Load(EOS(STATIC_4350), i1272)
4350_0_<init>_Load(EOS(STATIC_4350), i1272) → 4354_0_<init>_Load(EOS(STATIC_4354), i1272)
4354_0_<init>_Load(EOS(STATIC_4354), i1272) → 4358_0_<init>_FieldAccess(EOS(STATIC_4358), i1272)
4358_0_<init>_FieldAccess(EOS(STATIC_4358), i1272) → 4362_0_<init>_Load(EOS(STATIC_4362), i1272)
4362_0_<init>_Load(EOS(STATIC_4362), i1272) → 4366_0_<init>_Load(EOS(STATIC_4366), i1272)
4366_0_<init>_Load(EOS(STATIC_4366), i1272) → 4370_0_<init>_FieldAccess(EOS(STATIC_4370), i1272)
4370_0_<init>_FieldAccess(EOS(STATIC_4370), i1272) → 4374_0_<init>_Load(EOS(STATIC_4374), i1272)
4374_0_<init>_Load(EOS(STATIC_4374), i1272) → 4383_0_<init>_Load(EOS(STATIC_4383), i1272)
4383_0_<init>_Load(EOS(STATIC_4383), i1272) → 4389_0_<init>_FieldAccess(EOS(STATIC_4389), i1272)
4389_0_<init>_FieldAccess(EOS(STATIC_4389), i1272) → 4400_0_<init>_Return(EOS(STATIC_4400), i1272)
4400_0_<init>_Return(EOS(STATIC_4400), i1272) → 4413_0_addBefore_Store(EOS(STATIC_4413), i1272)
4413_0_addBefore_Store(EOS(STATIC_4413), i1272) → 4424_0_addBefore_Load(EOS(STATIC_4424), i1272)
4424_0_addBefore_Load(EOS(STATIC_4424), i1272) → 4434_0_addBefore_FieldAccess(EOS(STATIC_4434), i1272)
4434_0_addBefore_FieldAccess(EOS(STATIC_4434), i1272) → 4445_0_addBefore_Load(EOS(STATIC_4445), i1272)
4445_0_addBefore_Load(EOS(STATIC_4445), i1272) → 4461_0_addBefore_FieldAccess(EOS(STATIC_4461), i1272)
4461_0_addBefore_FieldAccess(EOS(STATIC_4461), i1272) → 4477_0_addBefore_FieldAccess(EOS(STATIC_4477), i1272)
4477_0_addBefore_FieldAccess(EOS(STATIC_4477), i1272) → 4509_0_addBefore_Load(EOS(STATIC_4509), i1272)
4509_0_addBefore_Load(EOS(STATIC_4509), i1272) → 4555_0_addBefore_FieldAccess(EOS(STATIC_4555), i1272)
4555_0_addBefore_FieldAccess(EOS(STATIC_4555), i1272) → 4560_0_addBefore_Load(EOS(STATIC_4560), i1272)
4560_0_addBefore_Load(EOS(STATIC_4560), i1272) → 4568_0_addBefore_FieldAccess(EOS(STATIC_4568), i1272)
4568_0_addBefore_FieldAccess(EOS(STATIC_4568), i1272) → 4573_0_addBefore_FieldAccess(EOS(STATIC_4573), i1272)
4568_0_addBefore_FieldAccess(EOS(STATIC_4568), i1272) → 4574_0_addBefore_FieldAccess(EOS(STATIC_4574), i1272)
4573_0_addBefore_FieldAccess(EOS(STATIC_4573), i1272) → 4580_0_addBefore_FieldAccess(EOS(STATIC_4580), i1272)
4573_0_addBefore_FieldAccess(EOS(STATIC_4573), i1272) → 4581_0_addBefore_FieldAccess(EOS(STATIC_4581), i1272)
4580_0_addBefore_FieldAccess(EOS(STATIC_4580), i1272) → 4591_0_addBefore_Load(EOS(STATIC_4591), i1272)
4591_0_addBefore_Load(EOS(STATIC_4591), i1272) → 4602_0_addBefore_Duplicate(EOS(STATIC_4602), i1272)
4602_0_addBefore_Duplicate(EOS(STATIC_4602), i1272) → 4613_0_addBefore_FieldAccess(EOS(STATIC_4613), i1272)
4613_0_addBefore_FieldAccess(EOS(STATIC_4613), i1272) → 4633_0_addBefore_ConstantStackPush(EOS(STATIC_4633), i1272)
4633_0_addBefore_ConstantStackPush(EOS(STATIC_4633), i1272) → 4644_0_addBefore_IntArithmetic(EOS(STATIC_4644), i1272)
4644_0_addBefore_IntArithmetic(EOS(STATIC_4644), i1272) → 4655_0_addBefore_FieldAccess(EOS(STATIC_4655), i1272)
4655_0_addBefore_FieldAccess(EOS(STATIC_4655), i1272) → 4666_0_addBefore_Load(EOS(STATIC_4666), i1272)
4666_0_addBefore_Load(EOS(STATIC_4666), i1272) → 4681_0_addBefore_Duplicate(EOS(STATIC_4681), i1272)
4681_0_addBefore_Duplicate(EOS(STATIC_4681), i1272) → 4692_0_addBefore_FieldAccess(EOS(STATIC_4692), i1272)
4692_0_addBefore_FieldAccess(EOS(STATIC_4692), i1272) → 4703_0_addBefore_ConstantStackPush(EOS(STATIC_4703), i1272)
4703_0_addBefore_ConstantStackPush(EOS(STATIC_4703), i1272) → 4726_0_addBefore_IntArithmetic(EOS(STATIC_4726), i1272)
4726_0_addBefore_IntArithmetic(EOS(STATIC_4726), i1272) → 4785_0_addBefore_FieldAccess(EOS(STATIC_4785), i1272)
4785_0_addBefore_FieldAccess(EOS(STATIC_4785), i1272) → 4837_0_addBefore_Load(EOS(STATIC_4837), i1272)
4837_0_addBefore_Load(EOS(STATIC_4837), i1272) → 4881_0_addBefore_Return(EOS(STATIC_4881), i1272)
4881_0_addBefore_Return(EOS(STATIC_4881), i1272) → 4895_0_addLast_StackPop(EOS(STATIC_4895), i1272)
4895_0_addLast_StackPop(EOS(STATIC_4895), i1272) → 4906_0_addLast_Return(EOS(STATIC_4906), i1272)
4906_0_addLast_Return(EOS(STATIC_4906), i1272) → 4916_0_createList_Inc(EOS(STATIC_4916), i1272)
4916_0_createList_Inc(EOS(STATIC_4916), i1272) → 4925_0_createList_JMP(EOS(STATIC_4925), +(i1272, -1)) | >(i1272, 0)
4925_0_createList_JMP(EOS(STATIC_4925), i1714) → 4933_0_createList_Load(EOS(STATIC_4933), i1714)
4933_0_createList_Load(EOS(STATIC_4933), i1714) → 4132_0_createList_Load(EOS(STATIC_4132), i1714)
4581_0_addBefore_FieldAccess(EOS(STATIC_4581), i1272) → 4592_0_addBefore_Load(EOS(STATIC_4592), i1272)
4592_0_addBefore_Load(EOS(STATIC_4592), i1272) → 4603_0_addBefore_Duplicate(EOS(STATIC_4603), i1272)
4603_0_addBefore_Duplicate(EOS(STATIC_4603), i1272) → 4614_0_addBefore_FieldAccess(EOS(STATIC_4614), i1272)
4614_0_addBefore_FieldAccess(EOS(STATIC_4614), i1272) → 4634_0_addBefore_ConstantStackPush(EOS(STATIC_4634), i1272)
4634_0_addBefore_ConstantStackPush(EOS(STATIC_4634), i1272) → 4645_0_addBefore_IntArithmetic(EOS(STATIC_4645), i1272)
4645_0_addBefore_IntArithmetic(EOS(STATIC_4645), i1272) → 4656_0_addBefore_FieldAccess(EOS(STATIC_4656), i1272)
4656_0_addBefore_FieldAccess(EOS(STATIC_4656), i1272) → 4667_0_addBefore_Load(EOS(STATIC_4667), i1272)
4667_0_addBefore_Load(EOS(STATIC_4667), i1272) → 4682_0_addBefore_Duplicate(EOS(STATIC_4682), i1272)
4682_0_addBefore_Duplicate(EOS(STATIC_4682), i1272) → 4693_0_addBefore_FieldAccess(EOS(STATIC_4693), i1272)
4693_0_addBefore_FieldAccess(EOS(STATIC_4693), i1272) → 4704_0_addBefore_ConstantStackPush(EOS(STATIC_4704), i1272)
4704_0_addBefore_ConstantStackPush(EOS(STATIC_4704), i1272) → 4727_0_addBefore_IntArithmetic(EOS(STATIC_4727), i1272)
4727_0_addBefore_IntArithmetic(EOS(STATIC_4727), i1272) → 4788_0_addBefore_FieldAccess(EOS(STATIC_4788), i1272)
4788_0_addBefore_FieldAccess(EOS(STATIC_4788), i1272) → 4839_0_addBefore_Load(EOS(STATIC_4839), i1272)
4839_0_addBefore_Load(EOS(STATIC_4839), i1272) → 4882_0_addBefore_Return(EOS(STATIC_4882), i1272)
4882_0_addBefore_Return(EOS(STATIC_4882), i1272) → 4896_0_addLast_StackPop(EOS(STATIC_4896), i1272)
4896_0_addLast_StackPop(EOS(STATIC_4896), i1272) → 4907_0_addLast_Return(EOS(STATIC_4907), i1272)
4907_0_addLast_Return(EOS(STATIC_4907), i1272) → 4917_0_createList_Inc(EOS(STATIC_4917), i1272)
4917_0_createList_Inc(EOS(STATIC_4917), i1272) → 4926_0_createList_JMP(EOS(STATIC_4926), +(i1272, -1)) | >(i1272, 0)
4926_0_createList_JMP(EOS(STATIC_4926), i1718) → 4934_0_createList_Load(EOS(STATIC_4934), i1718)
4934_0_createList_Load(EOS(STATIC_4934), i1718) → 4132_0_createList_Load(EOS(STATIC_4132), i1718)
4574_0_addBefore_FieldAccess(EOS(STATIC_4574), i1272) → 4582_0_addBefore_FieldAccess(EOS(STATIC_4582), i1272)
4574_0_addBefore_FieldAccess(EOS(STATIC_4574), i1272) → 4583_0_addBefore_FieldAccess(EOS(STATIC_4583), i1272)
4582_0_addBefore_FieldAccess(EOS(STATIC_4582), i1272) → 4593_0_addBefore_Load(EOS(STATIC_4593), i1272)
4593_0_addBefore_Load(EOS(STATIC_4593), i1272) → 4604_0_addBefore_Duplicate(EOS(STATIC_4604), i1272)
4604_0_addBefore_Duplicate(EOS(STATIC_4604), i1272) → 4615_0_addBefore_FieldAccess(EOS(STATIC_4615), i1272)
4615_0_addBefore_FieldAccess(EOS(STATIC_4615), i1272) → 4635_0_addBefore_ConstantStackPush(EOS(STATIC_4635), i1272)
4635_0_addBefore_ConstantStackPush(EOS(STATIC_4635), i1272) → 4646_0_addBefore_IntArithmetic(EOS(STATIC_4646), i1272)
4646_0_addBefore_IntArithmetic(EOS(STATIC_4646), i1272) → 4657_0_addBefore_FieldAccess(EOS(STATIC_4657), i1272)
4657_0_addBefore_FieldAccess(EOS(STATIC_4657), i1272) → 4668_0_addBefore_Load(EOS(STATIC_4668), i1272)
4668_0_addBefore_Load(EOS(STATIC_4668), i1272) → 4683_0_addBefore_Duplicate(EOS(STATIC_4683), i1272)
4683_0_addBefore_Duplicate(EOS(STATIC_4683), i1272) → 4694_0_addBefore_FieldAccess(EOS(STATIC_4694), i1272)
4694_0_addBefore_FieldAccess(EOS(STATIC_4694), i1272) → 4705_0_addBefore_ConstantStackPush(EOS(STATIC_4705), i1272)
4705_0_addBefore_ConstantStackPush(EOS(STATIC_4705), i1272) → 4732_0_addBefore_IntArithmetic(EOS(STATIC_4732), i1272)
4732_0_addBefore_IntArithmetic(EOS(STATIC_4732), i1272) → 4793_0_addBefore_FieldAccess(EOS(STATIC_4793), i1272)
4793_0_addBefore_FieldAccess(EOS(STATIC_4793), i1272) → 4842_0_addBefore_Load(EOS(STATIC_4842), i1272)
4842_0_addBefore_Load(EOS(STATIC_4842), i1272) → 4883_0_addBefore_Return(EOS(STATIC_4883), i1272)
4883_0_addBefore_Return(EOS(STATIC_4883), i1272) → 4897_0_addLast_StackPop(EOS(STATIC_4897), i1272)
4897_0_addLast_StackPop(EOS(STATIC_4897), i1272) → 4908_0_addLast_Return(EOS(STATIC_4908), i1272)
4908_0_addLast_Return(EOS(STATIC_4908), i1272) → 4918_0_createList_Inc(EOS(STATIC_4918), i1272)
4918_0_createList_Inc(EOS(STATIC_4918), i1272) → 4927_0_createList_JMP(EOS(STATIC_4927), +(i1272, -1)) | >(i1272, 0)
4927_0_createList_JMP(EOS(STATIC_4927), i1723) → 4935_0_createList_Load(EOS(STATIC_4935), i1723)
4935_0_createList_Load(EOS(STATIC_4935), i1723) → 4132_0_createList_Load(EOS(STATIC_4132), i1723)
4583_0_addBefore_FieldAccess(EOS(STATIC_4583), i1272) → 4594_0_addBefore_Load(EOS(STATIC_4594), i1272)
4594_0_addBefore_Load(EOS(STATIC_4594), i1272) → 4605_0_addBefore_Duplicate(EOS(STATIC_4605), i1272)
4605_0_addBefore_Duplicate(EOS(STATIC_4605), i1272) → 4619_0_addBefore_FieldAccess(EOS(STATIC_4619), i1272)
4619_0_addBefore_FieldAccess(EOS(STATIC_4619), i1272) → 4636_0_addBefore_ConstantStackPush(EOS(STATIC_4636), i1272)
4636_0_addBefore_ConstantStackPush(EOS(STATIC_4636), i1272) → 4647_0_addBefore_IntArithmetic(EOS(STATIC_4647), i1272)
4647_0_addBefore_IntArithmetic(EOS(STATIC_4647), i1272) → 4658_0_addBefore_FieldAccess(EOS(STATIC_4658), i1272)
4658_0_addBefore_FieldAccess(EOS(STATIC_4658), i1272) → 4669_0_addBefore_Load(EOS(STATIC_4669), i1272)
4669_0_addBefore_Load(EOS(STATIC_4669), i1272) → 4684_0_addBefore_Duplicate(EOS(STATIC_4684), i1272)
4684_0_addBefore_Duplicate(EOS(STATIC_4684), i1272) → 4695_0_addBefore_FieldAccess(EOS(STATIC_4695), i1272)
4695_0_addBefore_FieldAccess(EOS(STATIC_4695), i1272) → 4706_0_addBefore_ConstantStackPush(EOS(STATIC_4706), i1272)
4706_0_addBefore_ConstantStackPush(EOS(STATIC_4706), i1272) → 4738_0_addBefore_IntArithmetic(EOS(STATIC_4738), i1272)
4738_0_addBefore_IntArithmetic(EOS(STATIC_4738), i1272) → 4798_0_addBefore_FieldAccess(EOS(STATIC_4798), i1272)
4798_0_addBefore_FieldAccess(EOS(STATIC_4798), i1272) → 4848_0_addBefore_Load(EOS(STATIC_4848), i1272)
4848_0_addBefore_Load(EOS(STATIC_4848), i1272) → 4884_0_addBefore_Return(EOS(STATIC_4884), i1272)
4884_0_addBefore_Return(EOS(STATIC_4884), i1272) → 4898_0_addLast_StackPop(EOS(STATIC_4898), i1272)
4898_0_addLast_StackPop(EOS(STATIC_4898), i1272) → 4909_0_addLast_Return(EOS(STATIC_4909), i1272)
4909_0_addLast_Return(EOS(STATIC_4909), i1272) → 4919_0_createList_Inc(EOS(STATIC_4919), i1272)
4919_0_createList_Inc(EOS(STATIC_4919), i1272) → 4928_0_createList_JMP(EOS(STATIC_4928), +(i1272, -1)) | >(i1272, 0)
4928_0_createList_JMP(EOS(STATIC_4928), i1729) → 4936_0_createList_Load(EOS(STATIC_4936), i1729)
4936_0_createList_Load(EOS(STATIC_4936), i1729) → 4132_0_createList_Load(EOS(STATIC_4132), i1729)
4335_0_addBefore_FieldAccess(EOS(STATIC_4335), i1272) → 4339_0_addBefore_InvokeMethod(EOS(STATIC_4339), i1272)
4339_0_addBefore_InvokeMethod(EOS(STATIC_4339), i1272) → 4343_0_<init>_Load(EOS(STATIC_4343), i1272)
4343_0_<init>_Load(EOS(STATIC_4343), i1272) → 4347_0_<init>_InvokeMethod(EOS(STATIC_4347), i1272)
4347_0_<init>_InvokeMethod(EOS(STATIC_4347), i1272) → 4351_0_<init>_Load(EOS(STATIC_4351), i1272)
4351_0_<init>_Load(EOS(STATIC_4351), i1272) → 4355_0_<init>_Load(EOS(STATIC_4355), i1272)
4355_0_<init>_Load(EOS(STATIC_4355), i1272) → 4359_0_<init>_FieldAccess(EOS(STATIC_4359), i1272)
4359_0_<init>_FieldAccess(EOS(STATIC_4359), i1272) → 4363_0_<init>_Load(EOS(STATIC_4363), i1272)
4363_0_<init>_Load(EOS(STATIC_4363), i1272) → 4367_0_<init>_Load(EOS(STATIC_4367), i1272)
4367_0_<init>_Load(EOS(STATIC_4367), i1272) → 4371_0_<init>_FieldAccess(EOS(STATIC_4371), i1272)
4371_0_<init>_FieldAccess(EOS(STATIC_4371), i1272) → 4375_0_<init>_Load(EOS(STATIC_4375), i1272)
4375_0_<init>_Load(EOS(STATIC_4375), i1272) → 4385_0_<init>_Load(EOS(STATIC_4385), i1272)
4385_0_<init>_Load(EOS(STATIC_4385), i1272) → 4392_0_<init>_FieldAccess(EOS(STATIC_4392), i1272)
4392_0_<init>_FieldAccess(EOS(STATIC_4392), i1272) → 4406_0_<init>_Return(EOS(STATIC_4406), i1272)
4406_0_<init>_Return(EOS(STATIC_4406), i1272) → 4417_0_addBefore_Store(EOS(STATIC_4417), i1272)
4417_0_addBefore_Store(EOS(STATIC_4417), i1272) → 4428_0_addBefore_Load(EOS(STATIC_4428), i1272)
4428_0_addBefore_Load(EOS(STATIC_4428), i1272) → 4438_0_addBefore_FieldAccess(EOS(STATIC_4438), i1272)
4438_0_addBefore_FieldAccess(EOS(STATIC_4438), i1272) → 4449_0_addBefore_Load(EOS(STATIC_4449), i1272)
4449_0_addBefore_Load(EOS(STATIC_4449), i1272) → 4465_0_addBefore_FieldAccess(EOS(STATIC_4465), i1272)
4465_0_addBefore_FieldAccess(EOS(STATIC_4465), i1272) → 4482_0_addBefore_Load(EOS(STATIC_4482), i1272)
4482_0_addBefore_Load(EOS(STATIC_4482), i1272) → 4512_0_addBefore_FieldAccess(EOS(STATIC_4512), i1272)
4512_0_addBefore_FieldAccess(EOS(STATIC_4512), i1272) → 4556_0_addBefore_Load(EOS(STATIC_4556), i1272)
4556_0_addBefore_Load(EOS(STATIC_4556), i1272) → 4561_0_addBefore_FieldAccess(EOS(STATIC_4561), i1272)
4561_0_addBefore_FieldAccess(EOS(STATIC_4561), i1272) → 4569_0_addBefore_Load(EOS(STATIC_4569), i1272)
4569_0_addBefore_Load(EOS(STATIC_4569), i1272) → 4575_0_addBefore_Duplicate(EOS(STATIC_4575), i1272)
4575_0_addBefore_Duplicate(EOS(STATIC_4575), i1272) → 4584_0_addBefore_FieldAccess(EOS(STATIC_4584), i1272)
4584_0_addBefore_FieldAccess(EOS(STATIC_4584), i1272) → 4595_0_addBefore_ConstantStackPush(EOS(STATIC_4595), i1272)
4595_0_addBefore_ConstantStackPush(EOS(STATIC_4595), i1272) → 4606_0_addBefore_IntArithmetic(EOS(STATIC_4606), i1272)
4606_0_addBefore_IntArithmetic(EOS(STATIC_4606), i1272) → 4620_0_addBefore_FieldAccess(EOS(STATIC_4620), i1272)
4620_0_addBefore_FieldAccess(EOS(STATIC_4620), i1272) → 4637_0_addBefore_Load(EOS(STATIC_4637), i1272)
4637_0_addBefore_Load(EOS(STATIC_4637), i1272) → 4648_0_addBefore_Duplicate(EOS(STATIC_4648), i1272)
4648_0_addBefore_Duplicate(EOS(STATIC_4648), i1272) → 4659_0_addBefore_FieldAccess(EOS(STATIC_4659), i1272)
4659_0_addBefore_FieldAccess(EOS(STATIC_4659), i1272) → 4670_0_addBefore_ConstantStackPush(EOS(STATIC_4670), i1272)
4670_0_addBefore_ConstantStackPush(EOS(STATIC_4670), i1272) → 4685_0_addBefore_IntArithmetic(EOS(STATIC_4685), i1272)
4685_0_addBefore_IntArithmetic(EOS(STATIC_4685), i1272) → 4696_0_addBefore_FieldAccess(EOS(STATIC_4696), i1272)
4696_0_addBefore_FieldAccess(EOS(STATIC_4696), i1272) → 4707_0_addBefore_Load(EOS(STATIC_4707), i1272)
4707_0_addBefore_Load(EOS(STATIC_4707), i1272) → 4742_0_addBefore_Return(EOS(STATIC_4742), i1272)
4742_0_addBefore_Return(EOS(STATIC_4742), i1272) → 4801_0_addLast_StackPop(EOS(STATIC_4801), i1272)
4801_0_addLast_StackPop(EOS(STATIC_4801), i1272) → 4851_0_addLast_Return(EOS(STATIC_4851), i1272)
4851_0_addLast_Return(EOS(STATIC_4851), i1272) → 4885_0_createList_Inc(EOS(STATIC_4885), i1272)
4885_0_createList_Inc(EOS(STATIC_4885), i1272) → 4899_0_createList_JMP(EOS(STATIC_4899), +(i1272, -1)) | >(i1272, 0)
4899_0_createList_JMP(EOS(STATIC_4899), i1641) → 4910_0_createList_Load(EOS(STATIC_4910), i1641)
4910_0_createList_Load(EOS(STATIC_4910), i1641) → 4132_0_createList_Load(EOS(STATIC_4132), i1641)
R rules:

Combined rules. Obtained 1 conditional rules for P and 0 conditional rules for R.


P rules:
4133_0_createList_LE(EOS(STATIC_4133), x0, x0) → 4133_0_createList_LE(EOS(STATIC_4133), +(x0, -1), +(x0, -1)) | >(x0, 0)
R rules:

Filtered ground terms:



4133_0_createList_LE(x1, x2, x3) → 4133_0_createList_LE(x2, x3)
EOS(x1) → EOS
Cond_4133_0_createList_LE(x1, x2, x3, x4) → Cond_4133_0_createList_LE(x1, x3, x4)

Filtered duplicate args:



4133_0_createList_LE(x1, x2) → 4133_0_createList_LE(x2)
Cond_4133_0_createList_LE(x1, x2, x3) → Cond_4133_0_createList_LE(x1, x3)

Combined rules. Obtained 1 conditional rules for P and 0 conditional rules for R.


P rules:
4133_0_createList_LE(x0) → 4133_0_createList_LE(+(x0, -1)) | >(x0, 0)
R rules:

Finished conversion. Obtained 2 rules for P and 0 rules for R. System has predefined symbols.


P rules:
4133_0_CREATELIST_LE(x0) → COND_4133_0_CREATELIST_LE(>(x0, 0), x0)
COND_4133_0_CREATELIST_LE(TRUE, x0) → 4133_0_CREATELIST_LE(+(x0, -1))
R rules:

(6) Obligation:

IDP problem:
The following function symbols are pre-defined:
!=~Neq: (Integer, Integer) -> Boolean
*~Mul: (Integer, Integer) -> Integer
>=~Ge: (Integer, Integer) -> Boolean
-1~UnaryMinus: (Integer) -> Integer
|~Bwor: (Integer, Integer) -> Integer
/~Div: (Integer, Integer) -> Integer
=~Eq: (Integer, Integer) -> Boolean
~Bwxor: (Integer, Integer) -> Integer
||~Lor: (Boolean, Boolean) -> Boolean
!~Lnot: (Boolean) -> Boolean
<~Lt: (Integer, Integer) -> Boolean
-~Sub: (Integer, Integer) -> Integer
<=~Le: (Integer, Integer) -> Boolean
>~Gt: (Integer, Integer) -> Boolean
~~Bwnot: (Integer) -> Integer
%~Mod: (Integer, Integer) -> Integer
&~Bwand: (Integer, Integer) -> Integer
+~Add: (Integer, Integer) -> Integer
&&~Land: (Boolean, Boolean) -> Boolean


The following domains are used:

Integer


R is empty.

The integer pair graph contains the following rules and edges:
(0): 4133_0_CREATELIST_LE(x0[0]) → COND_4133_0_CREATELIST_LE(x0[0] > 0, x0[0])
(1): COND_4133_0_CREATELIST_LE(TRUE, x0[1]) → 4133_0_CREATELIST_LE(x0[1] + -1)

(0) -> (1), if (x0[0] > 0x0[0]* x0[1])


(1) -> (0), if (x0[1] + -1* x0[0])



The set Q is empty.

(7) IDPNonInfProof (SOUND transformation)

Used the following options for this NonInfProof:
IDPGPoloSolver: Range: [(-1,2)] IsNat: false Interpretation Shape Heuristic: aprove.DPFramework.IDPProblem.Processors.nonInf.poly.IdpCand1ShapeHeuristic@62b8054d Constraint Generator: NonInfConstraintGenerator: PathGenerator: MetricPathGenerator: Max Left Steps: 0 Max Right Steps: 0

The constraints were generated the following way:
The DP Problem is simplified using the Induction Calculus [NONINF] with the following steps:
Note that final constraints are written in bold face.


For Pair 4133_0_CREATELIST_LE(x0) → COND_4133_0_CREATELIST_LE(>(x0, 0), x0) the following chains were created:
  • We consider the chain 4133_0_CREATELIST_LE(x0[0]) → COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0]), COND_4133_0_CREATELIST_LE(TRUE, x0[1]) → 4133_0_CREATELIST_LE(+(x0[1], -1)) which results in the following constraint:

    (1)    (>(x0[0], 0)=TRUEx0[0]=x0[1]4133_0_CREATELIST_LE(x0[0])≥NonInfC∧4133_0_CREATELIST_LE(x0[0])≥COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])∧(UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥))



    We simplified constraint (1) using rule (IV) which results in the following new constraint:

    (2)    (>(x0[0], 0)=TRUE4133_0_CREATELIST_LE(x0[0])≥NonInfC∧4133_0_CREATELIST_LE(x0[0])≥COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])∧(UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥))



    We simplified constraint (2) using rule (POLY_CONSTRAINTS) which results in the following new constraint:

    (3)    (x0[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥)∧[(-1)Bound*bni_8] + [(2)bni_8]x0[0] ≥ 0∧[(-1)bso_9] ≥ 0)



    We simplified constraint (3) using rule (IDP_POLY_SIMPLIFY) which results in the following new constraint:

    (4)    (x0[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥)∧[(-1)Bound*bni_8] + [(2)bni_8]x0[0] ≥ 0∧[(-1)bso_9] ≥ 0)



    We simplified constraint (4) using rule (POLY_REMOVE_MIN_MAX) which results in the following new constraint:

    (5)    (x0[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥)∧[(-1)Bound*bni_8] + [(2)bni_8]x0[0] ≥ 0∧[(-1)bso_9] ≥ 0)



    We simplified constraint (5) using rule (IDP_SMT_SPLIT) which results in the following new constraint:

    (6)    (x0[0] ≥ 0 ⇒ (UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥)∧[(-1)Bound*bni_8 + (2)bni_8] + [(2)bni_8]x0[0] ≥ 0∧[(-1)bso_9] ≥ 0)







For Pair COND_4133_0_CREATELIST_LE(TRUE, x0) → 4133_0_CREATELIST_LE(+(x0, -1)) the following chains were created:
  • We consider the chain COND_4133_0_CREATELIST_LE(TRUE, x0[1]) → 4133_0_CREATELIST_LE(+(x0[1], -1)) which results in the following constraint:

    (7)    (COND_4133_0_CREATELIST_LE(TRUE, x0[1])≥NonInfC∧COND_4133_0_CREATELIST_LE(TRUE, x0[1])≥4133_0_CREATELIST_LE(+(x0[1], -1))∧(UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥))



    We simplified constraint (7) using rule (POLY_CONSTRAINTS) which results in the following new constraint:

    (8)    ((UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥)∧[bni_10] = 0∧[2 + (-1)bso_11] ≥ 0)



    We simplified constraint (8) using rule (IDP_POLY_SIMPLIFY) which results in the following new constraint:

    (9)    ((UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥)∧[bni_10] = 0∧[2 + (-1)bso_11] ≥ 0)



    We simplified constraint (9) using rule (POLY_REMOVE_MIN_MAX) which results in the following new constraint:

    (10)    ((UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥)∧[bni_10] = 0∧[2 + (-1)bso_11] ≥ 0)



    We simplified constraint (10) using rule (IDP_UNRESTRICTED_VARS) which results in the following new constraint:

    (11)    ((UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥)∧[bni_10] = 0∧0 = 0∧[2 + (-1)bso_11] ≥ 0)







To summarize, we get the following constraints P for the following pairs.
  • 4133_0_CREATELIST_LE(x0) → COND_4133_0_CREATELIST_LE(>(x0, 0), x0)
    • (x0[0] ≥ 0 ⇒ (UIncreasing(COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])), ≥)∧[(-1)Bound*bni_8 + (2)bni_8] + [(2)bni_8]x0[0] ≥ 0∧[(-1)bso_9] ≥ 0)

  • COND_4133_0_CREATELIST_LE(TRUE, x0) → 4133_0_CREATELIST_LE(+(x0, -1))
    • ((UIncreasing(4133_0_CREATELIST_LE(+(x0[1], -1))), ≥)∧[bni_10] = 0∧0 = 0∧[2 + (-1)bso_11] ≥ 0)




The constraints for P> respective Pbound are constructed from P where we just replace every occurence of "t ≥ s" in P by "t > s" respective "t ≥ c". Here c stands for the fresh constant used for Pbound.
Using the following integer polynomial ordering the resulting constraints can be solved
Polynomial interpretation over integers[POLO]:

POL(TRUE) = 0   
POL(FALSE) = 0   
POL(4133_0_CREATELIST_LE(x1)) = [2]x1   
POL(COND_4133_0_CREATELIST_LE(x1, x2)) = [2]x2   
POL(>(x1, x2)) = [-1]   
POL(0) = 0   
POL(+(x1, x2)) = x1 + x2   
POL(-1) = [-1]   

The following pairs are in P>:

COND_4133_0_CREATELIST_LE(TRUE, x0[1]) → 4133_0_CREATELIST_LE(+(x0[1], -1))

The following pairs are in Pbound:

4133_0_CREATELIST_LE(x0[0]) → COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])

The following pairs are in P:

4133_0_CREATELIST_LE(x0[0]) → COND_4133_0_CREATELIST_LE(>(x0[0], 0), x0[0])

There are no usable rules.

(8) Complex Obligation (AND)

(9) Obligation:

IDP problem:
The following function symbols are pre-defined:
!=~Neq: (Integer, Integer) -> Boolean
*~Mul: (Integer, Integer) -> Integer
>=~Ge: (Integer, Integer) -> Boolean
-1~UnaryMinus: (Integer) -> Integer
|~Bwor: (Integer, Integer) -> Integer
/~Div: (Integer, Integer) -> Integer
=~Eq: (Integer, Integer) -> Boolean
~Bwxor: (Integer, Integer) -> Integer
||~Lor: (Boolean, Boolean) -> Boolean
!~Lnot: (Boolean) -> Boolean
<~Lt: (Integer, Integer) -> Boolean
-~Sub: (Integer, Integer) -> Integer
<=~Le: (Integer, Integer) -> Boolean
>~Gt: (Integer, Integer) -> Boolean
~~Bwnot: (Integer) -> Integer
%~Mod: (Integer, Integer) -> Integer
&~Bwand: (Integer, Integer) -> Integer
+~Add: (Integer, Integer) -> Integer
&&~Land: (Boolean, Boolean) -> Boolean


The following domains are used:

Integer


R is empty.

The integer pair graph contains the following rules and edges:
(0): 4133_0_CREATELIST_LE(x0[0]) → COND_4133_0_CREATELIST_LE(x0[0] > 0, x0[0])


The set Q is empty.

(10) IDependencyGraphProof (EQUIVALENT transformation)

The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node.

(11) TRUE

(12) Obligation:

IDP problem:
The following function symbols are pre-defined:
!=~Neq: (Integer, Integer) -> Boolean
*~Mul: (Integer, Integer) -> Integer
>=~Ge: (Integer, Integer) -> Boolean
-1~UnaryMinus: (Integer) -> Integer
|~Bwor: (Integer, Integer) -> Integer
/~Div: (Integer, Integer) -> Integer
=~Eq: (Integer, Integer) -> Boolean
~Bwxor: (Integer, Integer) -> Integer
||~Lor: (Boolean, Boolean) -> Boolean
!~Lnot: (Boolean) -> Boolean
<~Lt: (Integer, Integer) -> Boolean
-~Sub: (Integer, Integer) -> Integer
<=~Le: (Integer, Integer) -> Boolean
>~Gt: (Integer, Integer) -> Boolean
~~Bwnot: (Integer) -> Integer
%~Mod: (Integer, Integer) -> Integer
&~Bwand: (Integer, Integer) -> Integer
+~Add: (Integer, Integer) -> Integer
&&~Land: (Boolean, Boolean) -> Boolean


The following domains are used:

Integer


R is empty.

The integer pair graph contains the following rules and edges:
(1): COND_4133_0_CREATELIST_LE(TRUE, x0[1]) → 4133_0_CREATELIST_LE(x0[1] + -1)


The set Q is empty.

(13) IDependencyGraphProof (EQUIVALENT transformation)

The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node.

(14) TRUE