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Comparing jsr166/src/main/java/util/Vector.java (file contents):
Revision 1.41 by jsr166, Thu Dec 8 05:01:42 2016 UTC vs.
Revision 1.56 by jsr166, Fri Aug 30 18:05:39 2019 UTC

#	Line 1 | Line 1
1		/*
2	<	* Copyright (c) 1994, 2013, Oracle and/or its affiliates. All rights reserved.
2	>	* Copyright (c) 1994, 2019, 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;
34
35	+	import jdk.internal.util.ArraysSupport;
36	+
37		/**
38		* The {@code Vector} class implements a growable array of
39		* objects. Like an array, it contains components that can be
#	Line 70 | Line 75 | import java.util.function.UnaryOperator;
75		*
76		* <p>As of the Java 2 platform v1.2, this class was retrofitted to
77		* implement the {@link List} interface, making it a member of the
78	<	* <a href="{@docRoot}/../technotes/guides/collections/index.html">
78	>	* <a href="{@docRoot}/java.base/java/util/package-summary.html#CollectionsFramework">
79		* Java Collections Framework</a>.  Unlike the new collection
80		* implementations, {@code Vector} is synchronized.  If a thread-safe
81		* implementation is not needed, it is recommended to use {@link
#	Line 119 | Line 124 | public class Vector<E>
124		protected int capacityIncrement;
125
126		/** use serialVersionUID from JDK 1.0.2 for interoperability */
127	+	// OPENJDK @java.io.Serial
128		private static final long serialVersionUID = -2767605614048989439L;
129
130		/**
#	Line 239 | Line 245 | public class Vector<E>
245		}
246
247		/**
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	–	/**
248		* Increases the capacity to ensure that it can hold at least the
249		* number of elements specified by the minimum capacity argument.
250		*
#	Line 254 | Line 252 | public class Vector<E>
252		* @throws OutOfMemoryError if minCapacity is less than zero
253		*/
254		private Object[] grow(int minCapacity) {
255	<	return elementData = Arrays.copyOf(elementData,
256	<	newCapacity(minCapacity));
255	>	int oldCapacity = elementData.length;
256	>	int newCapacity = ArraysSupport.newLength(oldCapacity,
257	>	minCapacity - oldCapacity, /* minimum growth */
258	>	capacityIncrement > 0 ? capacityIncrement : oldCapacity
259	>	/* preferred growth */);
260	>	return elementData = Arrays.copyOf(elementData, newCapacity);
261		}
262
263		private Object[] grow() {
#	Line 263 | Line 265 | public class Vector<E>
265		}
266
267		/**
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	–	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	–	/**
268		* Sets the size of this vector. If the new size is greater than the
269		* current size, new {@code null} items are added to the end of
270		* the vector. If the new size is less than the current size, all
#	Line 307 | Line 278 | public class Vector<E>
278		if (newSize > elementData.length)
279		grow(newSize);
280		final Object[] es = elementData;
281	<	for (int to = elementCount, i = elementCount = newSize; i < to; i++)
281	>	for (int to = elementCount, i = newSize; i < to; i++)
282		es[i] = null;
283	+	elementCount = newSize;
284		}
285
286		/**
#	Line 1026 | Line 998 | public class Vector<E>
998		setBit(deathRow, i - beg);
999		if (modCount != expectedModCount)
1000		throw new ConcurrentModificationException();
1029	–	expectedModCount++;
1001		modCount++;
1002		int w = beg;
1003		for (i = beg; i < end; i++)
#	Line 1177 | Line 1148 | public class Vector<E>
1148		}
1149
1150		/**
1151	+	* Loads a {@code Vector} instance from a stream
1152	+	* (that is, deserializes it).
1153	+	* This method performs checks to ensure the consistency
1154	+	* of the fields.
1155	+	*
1156	+	* @param in the stream
1157	+	* @throws java.io.IOException if an I/O error occurs
1158	+	* @throws ClassNotFoundException if the stream contains data
1159	+	*         of a non-existing class
1160	+	*/
1161	+	// OPENJDK @java.io.Serial
1162	+	private void readObject(ObjectInputStream in)
1163	+	throws IOException, ClassNotFoundException {
1164	+	ObjectInputStream.GetField gfields = in.readFields();
1165	+	int count = gfields.get("elementCount", 0);
1166	+	Object[] data = (Object[])gfields.get("elementData", null);
1167	+	if (count < 0 || data == null || count > data.length) {
1168	+	throw new StreamCorruptedException("Inconsistent vector internals");
1169	+	}
1170	+	elementCount = count;
1171	+	elementData = data.clone();
1172	+	}
1173	+
1174	+	/**
1175		* Saves the state of the {@code Vector} instance to a stream
1176		* (that is, serializes it).
1177		* This method performs synchronization to ensure the consistency
#	Line 1185 | Line 1180 | public class Vector<E>
1180		* @param s the stream
1181		* @throws java.io.IOException if an I/O error occurs
1182		*/
1183	+	// OPENJDK @java.io.Serial
1184		private void writeObject(java.io.ObjectOutputStream s)
1185		throws java.io.IOException {
1186		final java.io.ObjectOutputStream.PutField fields = s.putFields();
#	Line 1385 | Line 1381 | public class Vector<E>
1381		es[i] = operator.apply(elementAt(es, i));
1382		if (modCount != expectedModCount)
1383		throw new ConcurrentModificationException();
1384	+	// TODO(8203662): remove increment of modCount from ...
1385		modCount++;
1386		// checkInvariants();
1387		}
#	Line 1425 | Line 1422 | public class Vector<E>
1422		private int fence; // -1 until used; then one past last index
1423		private int expectedModCount; // initialized when fence set
1424
1425	<	/** Create new spliterator covering the given range */
1425	>	/** Creates new spliterator covering the given range. */
1426		VectorSpliterator(Object[] array, int origin, int fence,
1427		int expectedModCount) {
1428		this.array = array;
#	Line 1454 | Line 1451 | public class Vector<E>
1451
1452		@SuppressWarnings("unchecked")
1453		public boolean tryAdvance(Consumer<? super E> action) {
1454	+	Objects.requireNonNull(action);
1455		int i;
1458	–	if (action == null)
1459	–	throw new NullPointerException();
1456		if (getFence() > (i = index)) {
1457		index = i + 1;
1458		action.accept((E)array[i]);
#	Line 1469 | Line 1465 | public class Vector<E>
1465
1466		@SuppressWarnings("unchecked")
1467		public void forEachRemaining(Consumer<? super E> action) {
1468	<	if (action == null)
1473	<	throw new NullPointerException();
1468	>	Objects.requireNonNull(action);
1469		final int hi = getFence();
1470		final Object[] a = array;
1471		int i;

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