1/*
2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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12 * version 2 for more details (a copy is included in the LICENSE file that
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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 /test/lib
31 * @modules java.base/jdk.internal.misc
32 *          java.management
33 * @run main/othervm GuardShrinkWarning
34 * @author jon.masamitsu@oracle.com
35 */
36
37import jdk.test.lib.process.OutputAnalyzer;
38import jdk.test.lib.process.ProcessTools;
39
40public class GuardShrinkWarning {
41  public static void main(String args[]) throws Exception {
42
43    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
44      "-showversion",
45      "-XX:+UseConcMarkSweepGC",
46      "-XX:+ExplicitGCInvokesConcurrent",
47      "GuardShrinkWarning$SystemGCCaller"
48      );
49
50    OutputAnalyzer output = new OutputAnalyzer(pb.start());
51
52    output.shouldNotContain("Shrinking of CMS not yet implemented");
53
54    output.shouldNotContain("error");
55
56    output.shouldHaveExitValue(0);
57  }
58  static class SystemGCCaller {
59    public static void main(String [] args) {
60      System.gc();
61    }
62  }
63}
64