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root/jsr166/jsr166/src/main/java/util/Vector.java

Comparing jsr166/src/main/java/util/Vector.java (file contents):
Revision 1.38 by jsr166, Thu Dec 1 00:35:21 2016 UTC vs.
Revision 1.53 by jsr166, Mon Oct 1 00:10:53 2018 UTC

#	Line 1 | Line 1
1		/*
2	<	* Copyright (c) 1994, 2013, Oracle and/or its affiliates. All rights reserved.
2	>	* Copyright (c) 1994, 2018, 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
#	Line 25 | Line 25
25
26		package java.util;
27
28	+	import java.io.IOException;
29	+	import java.io.ObjectInputStream;
30	+	import java.io.StreamCorruptedException;
31		import java.util.function.Consumer;
32		import java.util.function.Predicate;
33		import java.util.function.UnaryOperator;
#	Line 70 | Line 73 | import java.util.function.UnaryOperator;
73		*
74		* <p>As of the Java 2 platform v1.2, this class was retrofitted to
75		* implement the {@link List} interface, making it a member of the
76	<	* <a href="{@docRoot}/../technotes/guides/collections/index.html">
76	>	* <a href="{@docRoot}/java.base/java/util/package-summary.html#CollectionsFramework">
77		* Java Collections Framework</a>.  Unlike the new collection
78		* implementations, {@code Vector} is synchronized.  If a thread-safe
79		* implementation is not needed, it is recommended to use {@link
#	Line 306 | Line 309 | public class Vector<E>
309		modCount++;
310		if (newSize > elementData.length)
311		grow(newSize);
312	<	for (int i = newSize; i < elementCount; i++)
313	<	elementData[i] = null;
312	>	final Object[] es = elementData;
313	>	for (int to = elementCount, i = newSize; i < to; i++)
314	>	es[i] = null;
315		elementCount = newSize;
316		}
317
#	Line 676 | Line 680 | public class Vector<E>
680		* method (which is part of the {@link List} interface).
681		*/
682		public synchronized void removeAllElements() {
683	<	Arrays.fill(elementData, 0, elementCount, null);
683	>	final Object[] es = elementData;
684	>	for (int to = elementCount, i = elementCount = 0; i < to; i++)
685	>	es[i] = null;
686		modCount++;
681	–	elementCount = 0;
687		}
688
689		/**
#	Line 984 | Line 989 | public class Vector<E>
989		return bulkRemove(e -> !c.contains(e));
990		}
991
992	+	/**
993	+	* @throws NullPointerException {@inheritDoc}
994	+	*/
995		@Override
996		public boolean removeIf(Predicate<? super E> filter) {
997		Objects.requireNonNull(filter);
#	Line 1022 | Line 1030 | public class Vector<E>
1030		setBit(deathRow, i - beg);
1031		if (modCount != expectedModCount)
1032		throw new ConcurrentModificationException();
1025	–	expectedModCount++;
1033		modCount++;
1034		int w = beg;
1035		for (i = beg; i < end; i++)
1036		if (isClear(deathRow, i - beg))
1037		es[w++] = es[i];
1038	<	Arrays.fill(es, elementCount = w, end, null);
1038	>	for (i = elementCount = w; i < end; i++)
1039	>	es[i] = null;
1040		// checkInvariants();
1041		return true;
1042		} else {
#	Line 1159 | Line 1167 | public class Vector<E>
1167		* (If {@code toIndex==fromIndex}, this operation has no effect.)
1168		*/
1169		protected synchronized void removeRange(int fromIndex, int toIndex) {
1162	–	final Object[] es = elementData;
1163	–	final int oldSize = elementCount;
1164	–	System.arraycopy(es, toIndex, es, fromIndex, oldSize - toIndex);
1165	–
1170		modCount++;
1171	<	Arrays.fill(es, elementCount -= (toIndex - fromIndex), oldSize, null);
1171	>	shiftTailOverGap(elementData, fromIndex, toIndex);
1172		// checkInvariants();
1173		}
1174
1175	+	/** Erases the gap from lo to hi, by sliding down following elements. */
1176	+	private void shiftTailOverGap(Object[] es, int lo, int hi) {
1177	+	System.arraycopy(es, hi, es, lo, elementCount - hi);
1178	+	for (int to = elementCount, i = (elementCount -= hi - lo); i < to; i++)
1179	+	es[i] = null;
1180	+	}
1181	+
1182	+	/**
1183	+	* Loads a {@code Vector} instance from a stream
1184	+	* (that is, deserializes it).
1185	+	* This method performs checks to ensure the consistency
1186	+	* of the fields.
1187	+	*
1188	+	* @param in the stream
1189	+	* @throws java.io.IOException if an I/O error occurs
1190	+	* @throws ClassNotFoundException if the stream contains data
1191	+	*         of a non-existing class
1192	+	*/
1193	+	private void readObject(ObjectInputStream in)
1194	+	throws IOException, ClassNotFoundException {
1195	+	ObjectInputStream.GetField gfields = in.readFields();
1196	+	int count = gfields.get("elementCount", 0);
1197	+	Object[] data = (Object[])gfields.get("elementData", null);
1198	+	if (count < 0 || data == null || count > data.length) {
1199	+	throw new StreamCorruptedException("Inconsistent vector internals");
1200	+	}
1201	+	elementCount = count;
1202	+	elementData = data.clone();
1203	+	}
1204	+
1205		/**
1206	<	* Save the state of the {@code Vector} instance to a stream (that
1207	<	* is, serialize it).
1206	>	* Saves the state of the {@code Vector} instance to a stream
1207	>	* (that is, serializes it).
1208		* This method performs synchronization to ensure the consistency
1209		* of the serialized data.
1210	+	*
1211	+	* @param s the stream
1212	+	* @throws java.io.IOException if an I/O error occurs
1213		*/
1214		private void writeObject(java.io.ObjectOutputStream s)
1215		throws java.io.IOException {
#	Line 1345 | Line 1382 | public class Vector<E>
1382		}
1383		}
1384
1385	+	/**
1386	+	* @throws NullPointerException {@inheritDoc}
1387	+	*/
1388		@Override
1389		public synchronized void forEach(Consumer<? super E> action) {
1390		Objects.requireNonNull(action);
#	Line 1358 | Line 1398 | public class Vector<E>
1398		// checkInvariants();
1399		}
1400
1401	+	/**
1402	+	* @throws NullPointerException {@inheritDoc}
1403	+	*/
1404		@Override
1405		public synchronized void replaceAll(UnaryOperator<E> operator) {
1406		Objects.requireNonNull(operator);
#	Line 1368 | Line 1411 | public class Vector<E>
1411		es[i] = operator.apply(elementAt(es, i));
1412		if (modCount != expectedModCount)
1413		throw new ConcurrentModificationException();
1371	–	modCount++;
1414		// checkInvariants();
1415		}
1416
#	Line 1408 | Line 1450 | public class Vector<E>
1450		private int fence; // -1 until used; then one past last index
1451		private int expectedModCount; // initialized when fence set
1452
1453	<	/** Create new spliterator covering the given range */
1453	>	/** Creates new spliterator covering the given range. */
1454		VectorSpliterator(Object[] array, int origin, int fence,
1455		int expectedModCount) {
1456		this.array = array;
#	Line 1437 | Line 1479 | public class Vector<E>
1479
1480		@SuppressWarnings("unchecked")
1481		public boolean tryAdvance(Consumer<? super E> action) {
1482	+	Objects.requireNonNull(action);
1483		int i;
1441	–	if (action == null)
1442	–	throw new NullPointerException();
1484		if (getFence() > (i = index)) {
1485		index = i + 1;
1486		action.accept((E)array[i]);
#	Line 1452 | Line 1493 | public class Vector<E>
1493
1494		@SuppressWarnings("unchecked")
1495		public void forEachRemaining(Consumer<? super E> action) {
1496	<	if (action == null)
1456	<	throw new NullPointerException();
1496	>	Objects.requireNonNull(action);
1497		final int hi = getFence();
1498		final Object[] a = array;
1499		int i;

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