001/* ConcurrentModificationException.java -- Data structure concurrently modified 002 Copyright (C) 1998, 1999, 2001, 2005 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package java.util; 040 041/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 042 * "The Java Language Specification", ISBN 0-201-63451-1 043 * plus online API docs for JDK 1.2 beta from http://www.javasoft.com. 044 */ 045 046/** 047 * Exception that is thrown by the collections classes when it is detected that 048 * a modification has been made to a data structure when this is not allowed, 049 * such as when a collection is structurally modified while an Iterator is 050 * operating over it. In cases where this can be detected, a 051 * ConcurrentModificationException will be thrown. An Iterator that detects 052 * this condition is referred to as fail-fast. Notice that this can occur 053 * even in single-threaded designs, if you call methods out of order. 054 * 055 * @author Warren Levy (warrenl@cygnus.com) 056 * @author Eric Blake (ebb9@email.byu.edu) 057 * @see Collection 058 * @see Iterator 059 * @see ListIterator 060 * @see Vector 061 * @see LinkedList 062 * @see HashSet 063 * @see Hashtable 064 * @see TreeMap 065 * @see AbstractList 066 * @since 1.2 067 * @status updated to 1.4 068 */ 069public class ConcurrentModificationException extends RuntimeException 070{ 071 /** 072 * Compatible with JDK 1.2. 073 */ 074 private static final long serialVersionUID = -3666751008965953603L; 075 076 /** 077 * Constructs a ConcurrentModificationException with no detail message. 078 */ 079 public ConcurrentModificationException() 080 { 081 } 082 083 /** 084 * Constructs a ConcurrentModificationException with a detail message. 085 * 086 * @param detail the detail message for the exception 087 */ 088 public ConcurrentModificationException(String detail) 089 { 090 super(detail); 091 } 092}