1 /* 2 * Copyright (c) 2013, 2019, 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 package gc.cms; 25 26 /** 27 * @test GuardShrinkWarning 28 * @key gc regression 29 * @summary Remove warning about CMS generation shrinking. 30 * @bug 8012111 31 * @requires !vm.graal.enabled 32 * @library /test/lib 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @run main/othervm gc.cms.GuardShrinkWarning 36 * @author jon.masamitsu@oracle.com 37 */ 38 39 import jdk.test.lib.process.OutputAnalyzer; 40 import jdk.test.lib.process.ProcessTools; 41 42 public class GuardShrinkWarning { 43 public static void main(String args[]) throws Exception { 44 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 46 "-showversion", 47 "-XX:+UseConcMarkSweepGC", 48 "-XX:+ExplicitGCInvokesConcurrent", 49 SystemGCCaller.class.getName() 50 ); 51 52 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 53 54 output.shouldNotContain("Shrinking of CMS not yet implemented"); 55 56 output.shouldNotContain("error"); 57 58 output.shouldHaveExitValue(0); 59 } 60 static class SystemGCCaller { 61 public static void main(String [] args) { 62 System.gc(); 63 } 64 } 65 }