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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/java/util/ConcurrentModificationException.java (1 of 18352 files). Show all

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java/pkg/java/util/ConcurrentModificationException.java+123−0
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1+/*
2+ * Copyright (c) 1997, 2010, 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. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
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
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
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 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+/**
29+ * This exception may be thrown by methods that have detected concurrent
30+ * modification of an object when such modification is not permissible.
31+ * <p>
32+ * For example, it is not generally permissible for one thread to modify a Collection
33+ * while another thread is iterating over it. In general, the results of the
34+ * iteration are undefined under these circumstances. Some Iterator
35+ * implementations (including those of all the general purpose collection implementations
36+ * provided by the JRE) may choose to throw this exception if this behavior is
37+ * detected. Iterators that do this are known as <i>fail-fast</i> iterators,
38+ * as they fail quickly and cleanly, rather that risking arbitrary,
39+ * non-deterministic behavior at an undetermined time in the future.
40+ * <p>
41+ * Note that this exception does not always indicate that an object has
42+ * been concurrently modified by a <i>different</i> thread. If a single
43+ * thread issues a sequence of method invocations that violates the
44+ * contract of an object, the object may throw this exception. For
45+ * example, if a thread modifies a collection directly while it is
46+ * iterating over the collection with a fail-fast iterator, the iterator
47+ * will throw this exception.
48+ *
49+ * <p>Note that fail-fast behavior cannot be guaranteed as it is, generally
50+ * speaking, impossible to make any hard guarantees in the presence of
51+ * unsynchronized concurrent modification. Fail-fast operations
52+ * throw {@code ConcurrentModificationException} on a best-effort basis.
53+ * Therefore, it would be wrong to write a program that depended on this
54+ * exception for its correctness: <i>{@code ConcurrentModificationException}
55+ * should be used only to detect bugs.</i>
56+ *
57+ * @author Josh Bloch
58+ * @see Collection
59+ * @see Iterator
60+ * @see ListIterator
61+ * @see Vector
62+ * @see LinkedList
63+ * @see HashSet
64+ * @see Hashtable
65+ * @see TreeMap
66+ * @see AbstractList
67+ * @since 1.2
68+ */
69+public class ConcurrentModificationException extends RuntimeException {
70+ private static final long serialVersionUID = -3666751008965953603L;
71+
72+ /**
73+ * Constructs a ConcurrentModificationException with no
74+ * detail message.
75+ */
76+ public ConcurrentModificationException() {
77+ }
78+
79+ /**
80+ * Constructs a {@code ConcurrentModificationException} with the
81+ * specified detail message.
82+ *
83+ * @param message the detail message pertaining to this exception.
84+ */
85+ public ConcurrentModificationException(String message) {
86+ super(message);
87+ }
88+
89+ /**
90+ * Constructs a new exception with the specified cause and a detail
91+ * message of {@code (cause==null ? null : cause.toString())} (which
92+ * typically contains the class and detail message of {@code cause}.
93+ *
94+ * @param cause the cause (which is saved for later retrieval by the
95+ * {@link Throwable#getCause()} method). (A {@code null} value is
96+ * permitted, and indicates that the cause is nonexistent or
97+ * unknown.)
98+ * @since 1.7
99+ */
100+ public ConcurrentModificationException(Throwable cause) {
101+ super(cause);
102+ }
103+
104+ /**
105+ * Constructs a new exception with the specified detail message and
106+ * cause.
107+ *
108+ * <p>Note that the detail message associated with <code>cause</code> is
109+ * <i>not</i> automatically incorporated in this exception's detail
110+ * message.
111+ *
112+ * @param message the detail message (which is saved for later retrieval
113+ * by the {@link Throwable#getMessage()} method).
114+ * @param cause the cause (which is saved for later retrieval by the
115+ * {@link Throwable#getCause()} method). (A {@code null} value
116+ * is permitted, and indicates that the cause is nonexistent or
117+ * unknown.)
118+ * @since 1.7
119+ */
120+ public ConcurrentModificationException(String message, Throwable cause) {
121+ super(message, cause);
122+ }
123+}