1 /*
   2  * Copyright (c) 2015, 2016, 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
  26  * @bug 8133885
  27  * @summary monitorinflation=debug should have logging from each of the statements in the code
  28  * @library /testlibrary
  29  * @modules java.base/sun.misc
  30  *          java.management
  31  * @build jdk.test.lib.OutputAnalyzer jdk.test.lib.ProcessTools
  32  * @run driver MonitorInflationTest
  33  */
  34 
  35 import jdk.test.lib.OutputAnalyzer;
  36 import jdk.test.lib.ProcessTools;
  37 
  38 public class MonitorInflationTest {
  39     static void analyzeOutputOn(ProcessBuilder pb) throws Exception {
  40         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  41         output.shouldContain("Inflating object");
  42         output.shouldContain("type MonitorInflationTest$Waiter");
  43         output.shouldContain("I've been waiting.");
  44         output.shouldHaveExitValue(0);
  45     }
  46 
  47     static void analyzeOutputOff(ProcessBuilder pb) throws Exception {
  48         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  49         output.shouldNotContain("[monitorinflation]");
  50         output.shouldHaveExitValue(0);
  51     }
  52 
  53     // Each ProcessBuilder should disable CDS with -Xshare:off so that no steps
  54     // that produce necessary logging are skipped.
  55     public static void main(String[] args) throws Exception {
  56         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  57             "-Xlog:monitorinflation=debug", "-Xshare:off",
  58             InnerClass.class.getName());
  59         analyzeOutputOn(pb);
  60 
  61         pb = ProcessTools.createJavaProcessBuilder(
  62             "-XX:+TraceMonitorInflation", "-Xshare:off",
  63             InnerClass.class.getName());
  64         analyzeOutputOn(pb);
  65 
  66         pb = ProcessTools.createJavaProcessBuilder(
  67             "-Xlog:monitorinflation=off", "-Xshare:off",
  68             InnerClass.class.getName());
  69         analyzeOutputOff(pb);
  70 
  71         pb = ProcessTools.createJavaProcessBuilder(
  72             "-XX:-TraceMonitorInflation", "-Xshare:off",
  73             InnerClass.class.getName());
  74         analyzeOutputOff(pb);
  75     }
  76 
  77     public static class Waiter {
  78         public static void foo() {
  79             System.out.println("I've been waiting.");
  80         }
  81     }
  82     public static class InnerClass {
  83         public static void main(String[] args) throws Exception {
  84             Waiter w = new Waiter();
  85             synchronized (w) {
  86                 w.wait(100);
  87                 w.foo();
  88             }
  89         }
  90     }
  91 }