/* * Copyright (c) 2012, 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 7144488 * @summary Infinite recursion for some equals tests in Collections */ import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; public class EqualsTest { public static void main(String[] args) { boolean test; /* synchronizedList test */ List list = Collections.synchronizedList(new ArrayList()); list.add(list); test = list.equals(list); assertTrue(test); list.remove(list); /* synchronizedSet test */ Set s = Collections.synchronizedSet(new HashSet()); s.add(s); test = s.equals(s); assertTrue(test); /* synchronizedMap test */ Map m = Collections.synchronizedMap(new HashMap()); test = m.equals(m); assertTrue(test); } private static void assertTrue(boolean b) { if (!b) throw new RuntimeException("assertion failed"); } }