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Comparing jsr166/src/main/java/util/Vector.java (file contents):
Revision 1.25 by jsr166, Mon May 19 00:28:21 2008 UTC vs.
Revision 1.32 by jsr166, Sat Nov 12 20:51:59 2016 UTC

# Line 1 | Line 1
1   /*
2 < * Copyright 1994-2007 Sun Microsystems, Inc.  All Rights Reserved.
2 > * Copyright (c) 1994, 2013, Oracle and/or its affiliates. All rights reserved.
3   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4   *
5   * This code is free software; you can redistribute it and/or modify it
6   * under the terms of the GNU General Public License version 2 only, as
7 < * published by the Free Software Foundation.  Sun designates this
7 > * published by the Free Software Foundation.  Oracle designates this
8   * particular file as subject to the "Classpath" exception as provided
9 < * by Sun in the LICENSE file that accompanied this code.
9 > * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# Line 18 | Line 18
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21 < * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 < * CA 95054 USA or visit www.sun.com if you need additional information or
23 < * have any questions.
21 > * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 > * or visit www.oracle.com if you need additional information or have any
23 > * questions.
24   */
25  
26   package java.util;
27  
28 + import java.util.function.Consumer;
29 + import java.util.function.Predicate;
30 + import java.util.function.UnaryOperator;
31 +
32   /**
33   * The {@code Vector} class implements a growable array of
34   * objects. Like an array, it contains components that can be
# Line 41 | Line 45 | package java.util;
45   * capacity of a vector before inserting a large number of
46   * components; this reduces the amount of incremental reallocation.
47   *
48 < * <p><a name="fail-fast"/>
48 > * <p id="fail-fast">
49   * The iterators returned by this class's {@link #iterator() iterator} and
50   * {@link #listIterator(int) listIterator} methods are <em>fail-fast</em>:
51   * if the vector is structurally modified at any time after the iterator is
# Line 52 | Line 56 | package java.util;
56   * concurrent modification, the iterator fails quickly and cleanly, rather
57   * than risking arbitrary, non-deterministic behavior at an undetermined
58   * time in the future.  The {@link Enumeration Enumerations} returned by
59 < * the {@link #elements() elements} method are <em>not</em> fail-fast.
59 > * the {@link #elements() elements} method are <em>not</em> fail-fast; if the
60 > * Vector is structurally modified at any time after the enumeration is
61 > * created then the results of enumerating are undefined.
62   *
63   * <p>Note that the fail-fast behavior of an iterator cannot be guaranteed
64   * as it is, generally speaking, impossible to make any hard guarantees in the
# Line 70 | Line 76 | package java.util;
76   * implementation is not needed, it is recommended to use {@link
77   * ArrayList} in place of {@code Vector}.
78   *
79 + * @param <E> Type of component elements
80 + *
81   * @author  Lee Boynton
82   * @author  Jonathan Payne
83   * @see Collection
84   * @see LinkedList
85 < * @since   JDK1.0
85 > * @since   1.0
86   */
87   public class Vector<E>
88      extends AbstractList<E>
# Line 166 | Line 174 | public class Vector<E>
174      public Vector(Collection<? extends E> c) {
175          elementData = c.toArray();
176          elementCount = elementData.length;
177 <        // c.toArray might (incorrectly) not return Object[] (see 6260652)
177 >        // defend against c.toArray (incorrectly) not returning Object[]
178 >        // (see e.g. https://bugs.openjdk.java.net/browse/JDK-6260652)
179          if (elementData.getClass() != Object[].class)
180              elementData = Arrays.copyOf(elementData, elementCount, Object[].class);
181      }
# Line 222 | Line 231 | public class Vector<E>
231       * @param minCapacity the desired minimum capacity
232       */
233      public synchronized void ensureCapacity(int minCapacity) {
234 <        modCount++;
235 <        ensureCapacityHelper(minCapacity);
234 >        if (minCapacity > 0) {
235 >            modCount++;
236 >            if (minCapacity > elementData.length)
237 >                grow(minCapacity);
238 >        }
239      }
240  
241      /**
242 <     * This implements the unsynchronized semantics of ensureCapacity.
243 <     * Synchronized methods in this class can internally call this
244 <     * method for ensuring capacity without incurring the cost of an
245 <     * extra synchronization.
242 >     * The maximum size of array to allocate (unless necessary).
243 >     * Some VMs reserve some header words in an array.
244 >     * Attempts to allocate larger arrays may result in
245 >     * OutOfMemoryError: Requested array size exceeds VM limit
246 >     */
247 >    private static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
248 >
249 >    /**
250 >     * Increases the capacity to ensure that it can hold at least the
251 >     * number of elements specified by the minimum capacity argument.
252       *
253 <     * @see #ensureCapacity(int)
253 >     * @param minCapacity the desired minimum capacity
254 >     * @throws OutOfMemoryError if minCapacity is less than zero
255       */
256 <    private void ensureCapacityHelper(int minCapacity) {
256 >    private Object[] grow(int minCapacity) {
257 >        return elementData = Arrays.copyOf(elementData,
258 >                                           newCapacity(minCapacity));
259 >    }
260 >
261 >    private Object[] grow() {
262 >        return grow(elementCount + 1);
263 >    }
264 >
265 >    /**
266 >     * Returns a capacity at least as large as the given minimum capacity.
267 >     * Will not return a capacity greater than MAX_ARRAY_SIZE unless
268 >     * the given minimum capacity is greater than MAX_ARRAY_SIZE.
269 >     *
270 >     * @param minCapacity the desired minimum capacity
271 >     * @throws OutOfMemoryError if minCapacity is less than zero
272 >     */
273 >    private int newCapacity(int minCapacity) {
274 >        // overflow-conscious code
275          int oldCapacity = elementData.length;
276 <        if (minCapacity > oldCapacity) {
277 <            Object[] oldData = elementData;
278 <            int newCapacity = (capacityIncrement > 0) ?
279 <                (oldCapacity + capacityIncrement) : (oldCapacity * 2);
280 <            if (newCapacity < minCapacity) {
281 <                newCapacity = minCapacity;
282 <            }
283 <            elementData = Arrays.copyOf(elementData, newCapacity);
284 <        }
276 >        int newCapacity = oldCapacity + ((capacityIncrement > 0) ?
277 >                                         capacityIncrement : oldCapacity);
278 >        if (newCapacity - minCapacity <= 0) {
279 >            if (minCapacity < 0) // overflow
280 >                throw new OutOfMemoryError();
281 >            return minCapacity;
282 >        }
283 >        return (newCapacity - MAX_ARRAY_SIZE <= 0)
284 >            ? newCapacity
285 >            : hugeCapacity(minCapacity);
286 >    }
287 >
288 >    private static int hugeCapacity(int minCapacity) {
289 >        if (minCapacity < 0) // overflow
290 >            throw new OutOfMemoryError();
291 >        return (minCapacity > MAX_ARRAY_SIZE) ?
292 >            Integer.MAX_VALUE :
293 >            MAX_ARRAY_SIZE;
294      }
295  
296      /**
# Line 258 | Line 304 | public class Vector<E>
304       */
305      public synchronized void setSize(int newSize) {
306          modCount++;
307 <        if (newSize > elementCount) {
308 <            ensureCapacityHelper(newSize);
309 <        } else {
310 <            for (int i = newSize ; i < elementCount ; i++) {
265 <                elementData[i] = null;
266 <            }
267 <        }
307 >        if (newSize > elementData.length)
308 >            grow(newSize);
309 >        for (int i = newSize; i < elementCount; i++)
310 >            elementData[i] = null;
311          elementCount = newSize;
312      }
313  
# Line 303 | Line 346 | public class Vector<E>
346       * Returns an enumeration of the components of this vector. The
347       * returned {@code Enumeration} object will generate all items in
348       * this vector. The first item generated is the item at index {@code 0},
349 <     * then the item at index {@code 1}, and so on.
349 >     * then the item at index {@code 1}, and so on. If the vector is
350 >     * structurally modified while enumerating over the elements then the
351 >     * results of enumerating are undefined.
352       *
353       * @return  an enumeration of the components of this vector
354       * @see     Iterator
# Line 331 | Line 376 | public class Vector<E>
376       * Returns {@code true} if this vector contains the specified element.
377       * More formally, returns {@code true} if and only if this vector
378       * contains at least one element {@code e} such that
379 <     * <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
379 >     * {@code Objects.equals(o, e)}.
380       *
381       * @param o element whose presence in this vector is to be tested
382       * @return {@code true} if this vector contains the specified element
# Line 344 | Line 389 | public class Vector<E>
389       * Returns the index of the first occurrence of the specified element
390       * in this vector, or -1 if this vector does not contain the element.
391       * More formally, returns the lowest index {@code i} such that
392 <     * <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
392 >     * {@code Objects.equals(o, get(i))},
393       * or -1 if there is no such index.
394       *
395       * @param o element to search for
# Line 360 | Line 405 | public class Vector<E>
405       * this vector, searching forwards from {@code index}, or returns -1 if
406       * the element is not found.
407       * More formally, returns the lowest index {@code i} such that
408 <     * <tt>(i&nbsp;&gt;=&nbsp;index&nbsp;&amp;&amp;&nbsp;(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i))))</tt>,
408 >     * {@code (i >= index && Objects.equals(o, get(i)))},
409       * or -1 if there is no such index.
410       *
411       * @param o element to search for
# Line 388 | Line 433 | public class Vector<E>
433       * Returns the index of the last occurrence of the specified element
434       * in this vector, or -1 if this vector does not contain the element.
435       * More formally, returns the highest index {@code i} such that
436 <     * <tt>(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i)))</tt>,
436 >     * {@code Objects.equals(o, get(i))},
437       * or -1 if there is no such index.
438       *
439       * @param o element to search for
# Line 404 | Line 449 | public class Vector<E>
449       * this vector, searching backwards from {@code index}, or returns -1 if
450       * the element is not found.
451       * More formally, returns the highest index {@code i} such that
452 <     * <tt>(i&nbsp;&lt;=&nbsp;index&nbsp;&amp;&amp;&nbsp;(o==null&nbsp;?&nbsp;get(i)==null&nbsp;:&nbsp;o.equals(get(i))))</tt>,
452 >     * {@code (i <= index && Objects.equals(o, get(i)))},
453       * or -1 if there is no such index.
454       *
455       * @param o element to search for
# Line 468 | Line 513 | public class Vector<E>
513       * Returns the last component of the vector.
514       *
515       * @return  the last component of the vector, i.e., the component at index
516 <     *          <code>size()&nbsp;-&nbsp;1</code>.
516 >     *          {@code size() - 1}
517       * @throws NoSuchElementException if this vector is empty
518       */
519      public synchronized E lastElement() {
# Line 526 | Line 571 | public class Vector<E>
571       *         ({@code index < 0 || index >= size()})
572       */
573      public synchronized void removeElementAt(int index) {
529        modCount++;
574          if (index >= elementCount) {
575              throw new ArrayIndexOutOfBoundsException(index + " >= " +
576                                                       elementCount);
# Line 538 | Line 582 | public class Vector<E>
582          if (j > 0) {
583              System.arraycopy(elementData, index + 1, elementData, index, j);
584          }
585 +        modCount++;
586          elementCount--;
587          elementData[elementCount] = null; /* to let gc do its work */
588      }
# Line 566 | Line 611 | public class Vector<E>
611       *         ({@code index < 0 || index > size()})
612       */
613      public synchronized void insertElementAt(E obj, int index) {
569        modCount++;
614          if (index > elementCount) {
615              throw new ArrayIndexOutOfBoundsException(index
616                                                       + " > " + elementCount);
617          }
618 <        ensureCapacityHelper(elementCount + 1);
619 <        System.arraycopy(elementData, index, elementData, index + 1, elementCount - index);
618 >        modCount++;
619 >        final int s = elementCount;
620 >        Object[] elementData = this.elementData;
621 >        if (s == elementData.length)
622 >            elementData = grow();
623 >        System.arraycopy(elementData, index,
624 >                         elementData, index + 1,
625 >                         s - index);
626          elementData[index] = obj;
627 <        elementCount++;
627 >        elementCount = s + 1;
628      }
629  
630      /**
# Line 590 | Line 640 | public class Vector<E>
640       */
641      public synchronized void addElement(E obj) {
642          modCount++;
643 <        ensureCapacityHelper(elementCount + 1);
594 <        elementData[elementCount++] = obj;
643 >        add(obj, elementData, elementCount);
644      }
645  
646      /**
# Line 626 | Line 675 | public class Vector<E>
675       * method (which is part of the {@link List} interface).
676       */
677      public synchronized void removeAllElements() {
629        modCount++;
678          // Let gc do its work
679          for (int i = 0; i < elementCount; i++)
680              elementData[i] = null;
681  
682 +        modCount++;
683          elementCount = 0;
684      }
685  
# Line 650 | Line 699 | public class Vector<E>
699              return v;
700          } catch (CloneNotSupportedException e) {
701              // this shouldn't happen, since we are Cloneable
702 <            throw new InternalError();
702 >            throw new InternalError(e);
703          }
704      }
705  
# Line 678 | Line 727 | public class Vector<E>
727       * of the Vector <em>only</em> if the caller knows that the Vector
728       * does not contain any null elements.)
729       *
730 +     * @param <T> type of array elements. The same type as {@code <E>} or a
731 +     * supertype of {@code <E>}.
732       * @param a the array into which the elements of the Vector are to
733       *          be stored, if it is big enough; otherwise, a new array of the
734       *          same runtime type is allocated for this purpose.
735       * @return an array containing the elements of the Vector
736 <     * @throws ArrayStoreException if the runtime type of a is not a supertype
737 <     * of the runtime type of every element in this Vector
736 >     * @throws ArrayStoreException if the runtime type of a, {@code <T>}, is not
737 >     * a supertype of the runtime type, {@code <E>}, of every element in this
738 >     * Vector
739       * @throws NullPointerException if the given array is null
740       * @since 1.2
741       */
# Line 744 | Line 796 | public class Vector<E>
796      }
797  
798      /**
799 +     * This helper method split out from add(E) to keep method
800 +     * bytecode size under 35 (the -XX:MaxInlineSize default value),
801 +     * which helps when add(E) is called in a C1-compiled loop.
802 +     */
803 +    private void add(E e, Object[] elementData, int s) {
804 +        if (s == elementData.length)
805 +            elementData = grow();
806 +        elementData[s] = e;
807 +        elementCount = s + 1;
808 +    }
809 +
810 +    /**
811       * Appends the specified element to the end of this Vector.
812       *
813       * @param e element to be appended to this Vector
# Line 752 | Line 816 | public class Vector<E>
816       */
817      public synchronized boolean add(E e) {
818          modCount++;
819 <        ensureCapacityHelper(elementCount + 1);
756 <        elementData[elementCount++] = e;
819 >        add(e, elementData, elementCount);
820          return true;
821      }
822  
# Line 761 | Line 824 | public class Vector<E>
824       * Removes the first occurrence of the specified element in this Vector
825       * If the Vector does not contain the element, it is unchanged.  More
826       * formally, removes the element with the lowest index i such that
827 <     * {@code (o==null ? get(i)==null : o.equals(get(i)))} (if such
827 >     * {@code Objects.equals(o, get(i))} (if such
828       * an element exists).
829       *
830       * @param o element to be removed from this Vector, if present
# Line 792 | Line 855 | public class Vector<E>
855       * Shifts any subsequent elements to the left (subtracts one from their
856       * indices).  Returns the element that was removed from the Vector.
857       *
795     * @throws ArrayIndexOutOfBoundsException if the index is out of range
796     *         ({@code index < 0 || index >= size()})
858       * @param index the index of the element to be removed
859       * @return element that was removed
860 +     * @throws ArrayIndexOutOfBoundsException if the index is out of range
861 +     *         ({@code index < 0 || index >= size()})
862       * @since 1.2
863       */
864      public synchronized E remove(int index) {
# Line 852 | Line 915 | public class Vector<E>
915       * @throws NullPointerException if the specified collection is null
916       * @since 1.2
917       */
918 <    public synchronized boolean addAll(Collection<? extends E> c) {
856 <        modCount++;
918 >    public boolean addAll(Collection<? extends E> c) {
919          Object[] a = c.toArray();
920 +        modCount++;
921          int numNew = a.length;
922 <        ensureCapacityHelper(elementCount + numNew);
923 <        System.arraycopy(a, 0, elementData, elementCount, numNew);
924 <        elementCount += numNew;
925 <        return numNew != 0;
922 >        if (numNew == 0)
923 >            return false;
924 >        synchronized (this) {
925 >            Object[] elementData = this.elementData;
926 >            final int s = elementCount;
927 >            if (numNew > elementData.length - s)
928 >                elementData = grow(s + numNew);
929 >            System.arraycopy(a, 0, elementData, s, numNew);
930 >            elementCount = s + numNew;
931 >            return true;
932 >        }
933      }
934  
935      /**
# Line 870 | Line 940 | public class Vector<E>
940       * @return true if this Vector changed as a result of the call
941       * @throws ClassCastException if the types of one or more elements
942       *         in this vector are incompatible with the specified
943 <     *         collection (optional)
943 >     *         collection
944 >     * (<a href="Collection.html#optional-restrictions">optional</a>)
945       * @throws NullPointerException if this vector contains one or more null
946       *         elements and the specified collection does not support null
947 <     *         elements (optional), or if the specified collection is null
947 >     *         elements
948 >     * (<a href="Collection.html#optional-restrictions">optional</a>),
949 >     *         or if the specified collection is null
950       * @since 1.2
951       */
952 <    public synchronized boolean removeAll(Collection<?> c) {
953 <        return super.removeAll(c);
952 >    public boolean removeAll(Collection<?> c) {
953 >        Objects.requireNonNull(c);
954 >        return bulkRemove(e -> c.contains(e));
955      }
956  
957      /**
# Line 890 | Line 964 | public class Vector<E>
964       * @return true if this Vector changed as a result of the call
965       * @throws ClassCastException if the types of one or more elements
966       *         in this vector are incompatible with the specified
967 <     *         collection (optional)
967 >     *         collection
968 >     * (<a href="Collection.html#optional-restrictions">optional</a>)
969       * @throws NullPointerException if this vector contains one or more null
970       *         elements and the specified collection does not support null
971 <     *         elements (optional), or if the specified collection is null
971 >     *         elements
972 >     *         (<a href="Collection.html#optional-restrictions">optional</a>),
973 >     *         or if the specified collection is null
974       * @since 1.2
975       */
976 <    public synchronized boolean retainAll(Collection<?> c)  {
977 <        return super.retainAll(c);
976 >    public boolean retainAll(Collection<?> c) {
977 >        Objects.requireNonNull(c);
978 >        return bulkRemove(e -> !c.contains(e));
979 >    }
980 >
981 >    @Override
982 >    public boolean removeIf(Predicate<? super E> filter) {
983 >        Objects.requireNonNull(filter);
984 >        return bulkRemove(filter);
985 >    }
986 >
987 >    @SuppressWarnings("unchecked")
988 >    private synchronized boolean bulkRemove(Predicate<? super E> filter) {
989 >        int expectedModCount = modCount;
990 >        final Object[] es = elementData;
991 >        final int size = elementCount;
992 >        final boolean modified;
993 >        int r;
994 >        // Optimize for initial run of survivors
995 >        for (r = 0; r < size && !filter.test((E) es[r]); r++)
996 >            ;
997 >        if (modified = (r < size)) {
998 >            expectedModCount++;
999 >            modCount++;
1000 >            int w = r++;
1001 >            try {
1002 >                for (E e; r < size; r++)
1003 >                    if (!filter.test(e = (E) es[r]))
1004 >                        es[w++] = e;
1005 >            } catch (Throwable ex) {
1006 >                // copy remaining elements
1007 >                System.arraycopy(es, r, es, w, size - r);
1008 >                w += size - r;
1009 >                throw ex;
1010 >            } finally {
1011 >                Arrays.fill(es, elementCount = w, size, null);
1012 >            }
1013 >        }
1014 >        if (modCount != expectedModCount)
1015 >            throw new ConcurrentModificationException();
1016 >        return modified;
1017      }
1018  
1019      /**
# Line 918 | Line 1034 | public class Vector<E>
1034       * @since 1.2
1035       */
1036      public synchronized boolean addAll(int index, Collection<? extends E> c) {
921        modCount++;
1037          if (index < 0 || index > elementCount)
1038              throw new ArrayIndexOutOfBoundsException(index);
1039  
1040          Object[] a = c.toArray();
1041 +        modCount++;
1042          int numNew = a.length;
1043 <        ensureCapacityHelper(elementCount + numNew);
1043 >        if (numNew == 0)
1044 >            return false;
1045 >        Object[] elementData = this.elementData;
1046 >        final int s = elementCount;
1047 >        if (numNew > elementData.length - s)
1048 >            elementData = grow(s + numNew);
1049  
1050 <        int numMoved = elementCount - index;
1050 >        int numMoved = s - index;
1051          if (numMoved > 0)
1052 <            System.arraycopy(elementData, index, elementData, index + numNew,
1052 >            System.arraycopy(elementData, index,
1053 >                             elementData, index + numNew,
1054                               numMoved);
933
1055          System.arraycopy(a, 0, elementData, index, numNew);
1056 <        elementCount += numNew;
1057 <        return numNew != 0;
1056 >        elementCount = s + numNew;
1057 >        return true;
1058      }
1059  
1060      /**
# Line 941 | Line 1062 | public class Vector<E>
1062       * true if and only if the specified Object is also a List, both Lists
1063       * have the same size, and all corresponding pairs of elements in the two
1064       * Lists are <em>equal</em>.  (Two elements {@code e1} and
1065 <     * {@code e2} are <em>equal</em> if {@code (e1==null ? e2==null :
1066 <     * e1.equals(e2))}.)  In other words, two Lists are defined to be
1065 >     * {@code e2} are <em>equal</em> if {@code Objects.equals(e1, e2)}.)
1066 >     * In other words, two Lists are defined to be
1067       * equal if they contain the same elements in the same order.
1068       *
1069       * @param o the Object to be compared for equality with this Vector
# Line 1014 | Line 1135 | public class Vector<E>
1135       * (If {@code toIndex==fromIndex}, this operation has no effect.)
1136       */
1137      protected synchronized void removeRange(int fromIndex, int toIndex) {
1017        modCount++;
1138          int numMoved = elementCount - toIndex;
1139          System.arraycopy(elementData, toIndex, elementData, fromIndex,
1140                           numMoved);
1141  
1142          // Let gc do its work
1143 +        modCount++;
1144          int newElementCount = elementCount - (toIndex-fromIndex);
1145          while (elementCount != newElementCount)
1146              elementData[--elementCount] = null;
# Line 1027 | Line 1148 | public class Vector<E>
1148  
1149      /**
1150       * Save the state of the {@code Vector} instance to a stream (that
1151 <     * is, serialize it).  This method is present merely for synchronization.
1152 <     * It just calls the default writeObject method.
1153 <     */
1154 <    private synchronized void writeObject(java.io.ObjectOutputStream s)
1155 <        throws java.io.IOException
1156 <    {
1157 <        s.defaultWriteObject();
1151 >     * is, serialize it).
1152 >     * This method performs synchronization to ensure the consistency
1153 >     * of the serialized data.
1154 >     */
1155 >    private void writeObject(java.io.ObjectOutputStream s)
1156 >            throws java.io.IOException {
1157 >        final java.io.ObjectOutputStream.PutField fields = s.putFields();
1158 >        final Object[] data;
1159 >        synchronized (this) {
1160 >            fields.put("capacityIncrement", capacityIncrement);
1161 >            fields.put("elementCount", elementCount);
1162 >            data = elementData.clone();
1163 >        }
1164 >        fields.put("elementData", data);
1165 >        s.writeFields();
1166      }
1167  
1168      /**
# Line 1114 | Line 1243 | public class Vector<E>
1243              lastRet = -1;
1244          }
1245  
1246 +        @Override
1247 +        public void forEachRemaining(Consumer<? super E> action) {
1248 +            Objects.requireNonNull(action);
1249 +            synchronized (Vector.this) {
1250 +                final int size = elementCount;
1251 +                int i = cursor;
1252 +                if (i >= size) {
1253 +                    return;
1254 +                }
1255 +        @SuppressWarnings("unchecked")
1256 +                final E[] elementData = (E[]) Vector.this.elementData;
1257 +                if (i >= elementData.length) {
1258 +                    throw new ConcurrentModificationException();
1259 +                }
1260 +                while (i != size && modCount == expectedModCount) {
1261 +                    action.accept(elementData[i++]);
1262 +                }
1263 +                // update once at end of iteration to reduce heap write traffic
1264 +                cursor = i;
1265 +                lastRet = i - 1;
1266 +                checkForComodification();
1267 +            }
1268 +        }
1269 +
1270          final void checkForComodification() {
1271              if (modCount != expectedModCount)
1272                  throw new ConcurrentModificationException();
# Line 1172 | Line 1325 | public class Vector<E>
1325              lastRet = -1;
1326          }
1327      }
1328 +
1329 +    @Override
1330 +    public synchronized void forEach(Consumer<? super E> action) {
1331 +        Objects.requireNonNull(action);
1332 +        final int expectedModCount = modCount;
1333 +        @SuppressWarnings("unchecked")
1334 +        final E[] elementData = (E[]) this.elementData;
1335 +        final int elementCount = this.elementCount;
1336 +        for (int i=0; modCount == expectedModCount && i < elementCount; i++) {
1337 +            action.accept(elementData[i]);
1338 +        }
1339 +        if (modCount != expectedModCount) {
1340 +            throw new ConcurrentModificationException();
1341 +        }
1342 +    }
1343 +
1344 +    @Override
1345 +    @SuppressWarnings("unchecked")
1346 +    public synchronized void replaceAll(UnaryOperator<E> operator) {
1347 +        Objects.requireNonNull(operator);
1348 +        final int expectedModCount = modCount;
1349 +        final int size = elementCount;
1350 +        for (int i=0; modCount == expectedModCount && i < size; i++) {
1351 +            elementData[i] = operator.apply((E) elementData[i]);
1352 +        }
1353 +        if (modCount != expectedModCount) {
1354 +            throw new ConcurrentModificationException();
1355 +        }
1356 +        modCount++;
1357 +    }
1358 +
1359 +    @SuppressWarnings("unchecked")
1360 +    @Override
1361 +    public synchronized void sort(Comparator<? super E> c) {
1362 +        final int expectedModCount = modCount;
1363 +        Arrays.sort((E[]) elementData, 0, elementCount, c);
1364 +        if (modCount != expectedModCount) {
1365 +            throw new ConcurrentModificationException();
1366 +        }
1367 +        modCount++;
1368 +    }
1369 +
1370 +    /**
1371 +     * Creates a <em><a href="Spliterator.html#binding">late-binding</a></em>
1372 +     * and <em>fail-fast</em> {@link Spliterator} over the elements in this
1373 +     * list.
1374 +     *
1375 +     * <p>The {@code Spliterator} reports {@link Spliterator#SIZED},
1376 +     * {@link Spliterator#SUBSIZED}, and {@link Spliterator#ORDERED}.
1377 +     * Overriding implementations should document the reporting of additional
1378 +     * characteristic values.
1379 +     *
1380 +     * @return a {@code Spliterator} over the elements in this list
1381 +     * @since 1.8
1382 +     */
1383 +    @Override
1384 +    public Spliterator<E> spliterator() {
1385 +        return new VectorSpliterator<>(this, null, 0, -1, 0);
1386 +    }
1387 +
1388 +    /** Similar to ArrayList Spliterator */
1389 +    static final class VectorSpliterator<E> implements Spliterator<E> {
1390 +        private final Vector<E> list;
1391 +        private Object[] array;
1392 +        private int index; // current index, modified on advance/split
1393 +        private int fence; // -1 until used; then one past last index
1394 +        private int expectedModCount; // initialized when fence set
1395 +
1396 +        /** Create new spliterator covering the given  range */
1397 +        VectorSpliterator(Vector<E> list, Object[] array, int origin, int fence,
1398 +                          int expectedModCount) {
1399 +            this.list = list;
1400 +            this.array = array;
1401 +            this.index = origin;
1402 +            this.fence = fence;
1403 +            this.expectedModCount = expectedModCount;
1404 +        }
1405 +
1406 +        private int getFence() { // initialize on first use
1407 +            int hi;
1408 +            if ((hi = fence) < 0) {
1409 +                synchronized (list) {
1410 +                    array = list.elementData;
1411 +                    expectedModCount = list.modCount;
1412 +                    hi = fence = list.elementCount;
1413 +                }
1414 +            }
1415 +            return hi;
1416 +        }
1417 +
1418 +        public Spliterator<E> trySplit() {
1419 +            int hi = getFence(), lo = index, mid = (lo + hi) >>> 1;
1420 +            return (lo >= mid) ? null :
1421 +                new VectorSpliterator<>(list, array, lo, index = mid,
1422 +                                        expectedModCount);
1423 +        }
1424 +
1425 +        @SuppressWarnings("unchecked")
1426 +        public boolean tryAdvance(Consumer<? super E> action) {
1427 +            int i;
1428 +            if (action == null)
1429 +                throw new NullPointerException();
1430 +            if (getFence() > (i = index)) {
1431 +                index = i + 1;
1432 +                action.accept((E)array[i]);
1433 +                if (list.modCount != expectedModCount)
1434 +                    throw new ConcurrentModificationException();
1435 +                return true;
1436 +            }
1437 +            return false;
1438 +        }
1439 +
1440 +        @SuppressWarnings("unchecked")
1441 +        public void forEachRemaining(Consumer<? super E> action) {
1442 +            int i, hi; // hoist accesses and checks from loop
1443 +            Vector<E> lst; Object[] a;
1444 +            if (action == null)
1445 +                throw new NullPointerException();
1446 +            if ((lst = list) != null) {
1447 +                if ((hi = fence) < 0) {
1448 +                    synchronized (lst) {
1449 +                        expectedModCount = lst.modCount;
1450 +                        a = array = lst.elementData;
1451 +                        hi = fence = lst.elementCount;
1452 +                    }
1453 +                }
1454 +                else
1455 +                    a = array;
1456 +                if (a != null && (i = index) >= 0 && (index = hi) <= a.length) {
1457 +                    while (i < hi)
1458 +                        action.accept((E) a[i++]);
1459 +                    if (lst.modCount == expectedModCount)
1460 +                        return;
1461 +                }
1462 +            }
1463 +            throw new ConcurrentModificationException();
1464 +        }
1465 +
1466 +        public long estimateSize() {
1467 +            return getFence() - index;
1468 +        }
1469 +
1470 +        public int characteristics() {
1471 +            return Spliterator.ORDERED | Spliterator.SIZED | Spliterator.SUBSIZED;
1472 +        }
1473 +    }
1474   }

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