1 /*
   2  * Copyright (c) 2013, 2015, 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 GuardShrinkWarning
  26  * @summary Remove warning about CMS generation shrinking.
  27  * @bug 8012111
  28  * @key gc
  29  * @key regression
  30  * @library /testlibrary
  31  * @modules java.base/sun.misc
  32  *          java.management
  33  * @run main/othervm GuardShrinkWarning
  34  * @author jon.masamitsu@oracle.com
  35  */
  36 
  37 import jdk.test.lib.*;
  38 
  39 public class GuardShrinkWarning {
  40   public static void main(String args[]) throws Exception {
  41 
  42     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  43       "-showversion",
  44       "-XX:+UseConcMarkSweepGC",
  45       "-XX:+ExplicitGCInvokesConcurrent",
  46       "GuardShrinkWarning$SystemGCCaller"
  47       );
  48 
  49     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  50 
  51     output.shouldNotContain("Shrinking of CMS not yet implemented");
  52 
  53     output.shouldNotContain("error");
  54 
  55     output.shouldHaveExitValue(0);
  56   }
  57   static class SystemGCCaller {
  58     public static void main(String [] args) {
  59       System.gc();
  60     }
  61   }
  62 }