1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/compact/src/main/java/java/util/ConcurrentModificationException.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,123 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package java.util;
1.30 +
1.31 +/**
1.32 + * This exception may be thrown by methods that have detected concurrent
1.33 + * modification of an object when such modification is not permissible.
1.34 + * <p>
1.35 + * For example, it is not generally permissible for one thread to modify a Collection
1.36 + * while another thread is iterating over it. In general, the results of the
1.37 + * iteration are undefined under these circumstances. Some Iterator
1.38 + * implementations (including those of all the general purpose collection implementations
1.39 + * provided by the JRE) may choose to throw this exception if this behavior is
1.40 + * detected. Iterators that do this are known as <i>fail-fast</i> iterators,
1.41 + * as they fail quickly and cleanly, rather that risking arbitrary,
1.42 + * non-deterministic behavior at an undetermined time in the future.
1.43 + * <p>
1.44 + * Note that this exception does not always indicate that an object has
1.45 + * been concurrently modified by a <i>different</i> thread. If a single
1.46 + * thread issues a sequence of method invocations that violates the
1.47 + * contract of an object, the object may throw this exception. For
1.48 + * example, if a thread modifies a collection directly while it is
1.49 + * iterating over the collection with a fail-fast iterator, the iterator
1.50 + * will throw this exception.
1.51 + *
1.52 + * <p>Note that fail-fast behavior cannot be guaranteed as it is, generally
1.53 + * speaking, impossible to make any hard guarantees in the presence of
1.54 + * unsynchronized concurrent modification. Fail-fast operations
1.55 + * throw {@code ConcurrentModificationException} on a best-effort basis.
1.56 + * Therefore, it would be wrong to write a program that depended on this
1.57 + * exception for its correctness: <i>{@code ConcurrentModificationException}
1.58 + * should be used only to detect bugs.</i>
1.59 + *
1.60 + * @author Josh Bloch
1.61 + * @see Collection
1.62 + * @see Iterator
1.63 + * @see ListIterator
1.64 + * @see Vector
1.65 + * @see LinkedList
1.66 + * @see HashSet
1.67 + * @see Hashtable
1.68 + * @see TreeMap
1.69 + * @see AbstractList
1.70 + * @since 1.2
1.71 + */
1.72 +public class ConcurrentModificationException extends RuntimeException {
1.73 + private static final long serialVersionUID = -3666751008965953603L;
1.74 +
1.75 + /**
1.76 + * Constructs a ConcurrentModificationException with no
1.77 + * detail message.
1.78 + */
1.79 + public ConcurrentModificationException() {
1.80 + }
1.81 +
1.82 + /**
1.83 + * Constructs a {@code ConcurrentModificationException} with the
1.84 + * specified detail message.
1.85 + *
1.86 + * @param message the detail message pertaining to this exception.
1.87 + */
1.88 + public ConcurrentModificationException(String message) {
1.89 + super(message);
1.90 + }
1.91 +
1.92 + /**
1.93 + * Constructs a new exception with the specified cause and a detail
1.94 + * message of {@code (cause==null ? null : cause.toString())} (which
1.95 + * typically contains the class and detail message of {@code cause}.
1.96 + *
1.97 + * @param cause the cause (which is saved for later retrieval by the
1.98 + * {@link Throwable#getCause()} method). (A {@code null} value is
1.99 + * permitted, and indicates that the cause is nonexistent or
1.100 + * unknown.)
1.101 + * @since 1.7
1.102 + */
1.103 + public ConcurrentModificationException(Throwable cause) {
1.104 + super(cause);
1.105 + }
1.106 +
1.107 + /**
1.108 + * Constructs a new exception with the specified detail message and
1.109 + * cause.
1.110 + *
1.111 + * <p>Note that the detail message associated with <code>cause</code> is
1.112 + * <i>not</i> automatically incorporated in this exception's detail
1.113 + * message.
1.114 + *
1.115 + * @param message the detail message (which is saved for later retrieval
1.116 + * by the {@link Throwable#getMessage()} method).
1.117 + * @param cause the cause (which is saved for later retrieval by the
1.118 + * {@link Throwable#getCause()} method). (A {@code null} value
1.119 + * is permitted, and indicates that the cause is nonexistent or
1.120 + * unknown.)
1.121 + * @since 1.7
1.122 + */
1.123 + public ConcurrentModificationException(String message, Throwable cause) {
1.124 + super(message, cause);
1.125 + }
1.126 +}