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test/java/lang/management/ThreadMXBean/LockedMonitors.java

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rev 11832 : 8078896: Add @modules as needed to the jdk_svc tests
Reviewed-by: alanb, mchung
   1 /*
   2  * Copyright (c) 2005, 2013, 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     5086470 6358247
  27  * @summary Basic Test for ThreadInfo.getLockedMonitors()
  28  *          - a stack frame acquires no monitor
  29  *          - a stack frame acquires one or more monitors
  30  *          - a stack frame blocks on Object.wait
  31  *            and the monitor waiting is not locked.
  32  *          LockingThread is the class that creates threads
  33  *          and do the checking.
  34  *
  35  * @author  Mandy Chung
  36  *

  37  * @build Barrier
  38  * @build LockingThread
  39  * @build ThreadDump
  40  * @run main/othervm LockedMonitors
  41  */
  42 
  43 import java.lang.management.*;
  44 import java.util.*;
  45 
  46 public class LockedMonitors {
  47     public static void main(String[] argv) throws Exception {
  48         ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  49         if (!mbean.isObjectMonitorUsageSupported()) {
  50             System.out.println("Monitoring of object monitor usage is not supported");
  51             return;
  52         }
  53 
  54         // Start the thread and print the thread dump
  55         LockingThread.startLockingThreads();
  56         ThreadDump.threadDump();


   1 /*
   2  * Copyright (c) 2005, 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
  26  * @bug     5086470 6358247
  27  * @summary Basic Test for ThreadInfo.getLockedMonitors()
  28  *          - a stack frame acquires no monitor
  29  *          - a stack frame acquires one or more monitors
  30  *          - a stack frame blocks on Object.wait
  31  *            and the monitor waiting is not locked.
  32  *          LockingThread is the class that creates threads
  33  *          and do the checking.
  34  *
  35  * @author  Mandy Chung
  36  *
  37  * @modules java.management
  38  * @build Barrier
  39  * @build LockingThread
  40  * @build ThreadDump
  41  * @run main/othervm LockedMonitors
  42  */
  43 
  44 import java.lang.management.*;
  45 import java.util.*;
  46 
  47 public class LockedMonitors {
  48     public static void main(String[] argv) throws Exception {
  49         ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  50         if (!mbean.isObjectMonitorUsageSupported()) {
  51             System.out.println("Monitoring of object monitor usage is not supported");
  52             return;
  53         }
  54 
  55         // Start the thread and print the thread dump
  56         LockingThread.startLockingThreads();
  57         ThreadDump.threadDump();


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