1 /* 2 * Copyright (c) 1999, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4189896 27 * @summary AbstractList iterators previously checked for co-modification 28 * *after* the set/add/remove operations were performed. 29 */ 30 31 package test.java.util.AbstractList; 32 33 import java.util.ArrayList; 34 import java.util.ConcurrentModificationException; 35 import java.util.List; 36 import java.util.ListIterator; 37 38 public class FailFastIterator { main(String[] args)39 public static void main(String[] args) throws Exception { 40 List orig = new ArrayList(100); 41 for (int i=0; i<100; i++) 42 orig.add(new Integer(i)); 43 44 List copy = new ArrayList(orig); 45 try { 46 ListIterator i = copy.listIterator(); 47 i.next(); 48 copy.remove(99); 49 copy.add(new Integer(99)); 50 i.remove(); 51 throw new Exception("remove: iterator didn't fail fast"); 52 } catch (ConcurrentModificationException e) { 53 } 54 if (!copy.equals(orig)) 55 throw new Exception("remove: iterator didn't fail fast enough"); 56 57 try { 58 ListIterator i = copy.listIterator(); 59 i.next(); 60 copy.remove(99); 61 copy.add(new Integer(99)); 62 i.set(new Integer(666)); 63 throw new Exception("set: iterator didn't fail fast"); 64 } catch (ConcurrentModificationException e) { 65 } 66 if (!copy.equals(orig)) 67 throw new Exception("set: iterator didn't fail fast enough"); 68 69 try { 70 ListIterator i = copy.listIterator(); 71 copy.remove(99); 72 copy.add(new Integer(99)); 73 i.add(new Integer(666)); 74 throw new Exception("add: iterator didn't fail fast"); 75 } catch (ConcurrentModificationException e) { 76 } 77 if (!copy.equals(orig)) 78 throw new Exception("add: iterator didn't fail fast enough"); 79 } 80 } 81