/* * Copyright (c) 1997, 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 4091185 * @summary Repeatedly OR BitSets; No OutOfMemoryException should result */ import java.util.*; /** * This is a simple test class that repeatedly ORs two * BitSets of unequal size together. Previously this * caused an exponential growth in the memory underlying * the BitSets quickly using all available memory */ public class MemoryLeak { public static void main(String[] args) { //create 2 test bitsets BitSet setOne = new BitSet(); BitSet setTwo = new BitSet(); setOne.set(64); setTwo.set(129); //test for bug #4091185 //exponential set growth causing memory depletion for (int i = 0; i < 50; i++) { setOne.or(setTwo); setTwo.or(setOne); } } }