jdk-24/jdk/test/java/util/AbstractList/FailFastIterator.java
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Reviewed-by: martin, psandoz, chegar
2015-10-13 16:45:35 -07:00

76 lines
2.7 KiB
Java

/*
* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 4189896
* @summary AbstractList iterators previously checked for co-modification
* *after* the set/add/remove operations were performed.
*/
import java.util.*;
public class FailFastIterator {
public static void main(String[] args) throws Exception {
List orig = new ArrayList(100);
for (int i=0; i<100; i++)
orig.add(new Integer(i));
List copy = new ArrayList(orig);
try {
ListIterator i = copy.listIterator();
i.next();
copy.remove(99);
copy.add(new Integer(99));
i.remove();
throw new Exception("remove: iterator didn't fail fast");
} catch (ConcurrentModificationException e) {
}
if (!copy.equals(orig))
throw new Exception("remove: iterator didn't fail fast enough");
try {
ListIterator i = copy.listIterator();
i.next();
copy.remove(99);
copy.add(new Integer(99));
i.set(new Integer(666));
throw new Exception("set: iterator didn't fail fast");
} catch (ConcurrentModificationException e) {
}
if (!copy.equals(orig))
throw new Exception("set: iterator didn't fail fast enough");
try {
ListIterator i = copy.listIterator();
copy.remove(99);
copy.add(new Integer(99));
i.add(new Integer(666));
throw new Exception("add: iterator didn't fail fast");
} catch (ConcurrentModificationException e) {
}
if (!copy.equals(orig))
throw new Exception("add: iterator didn't fail fast enough");
}
}