0N/A/*
2362N/A * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
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0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 5086470 6358247
0N/A * @summary Basic Test for ThreadInfo.getLockedMonitors()
0N/A * - a stack frame acquires no monitor
0N/A * - a stack frame acquires one or more monitors
0N/A * - a stack frame blocks on Object.wait
0N/A * and the monitor waiting is not locked.
0N/A * LockingThread is the class that creates threads
0N/A * and do the checking.
0N/A *
0N/A * @author Mandy Chung
0N/A *
0N/A * @build Barrier
0N/A * @build LockingThread
0N/A * @build ThreadDump
0N/A * @run main LockedMonitors
0N/A */
0N/A
0N/Aimport java.lang.management.*;
0N/Aimport java.util.*;
0N/A
0N/Apublic class LockedMonitors {
0N/A public static void main(String[] argv) throws Exception {
0N/A ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
0N/A if (!mbean.isObjectMonitorUsageSupported()) {
0N/A System.out.println("Monitoring of object monitor usage is not supported");
0N/A return;
0N/A }
0N/A
0N/A // Start the thread and print the thread dump
0N/A LockingThread.startLockingThreads();
0N/A ThreadDump.threadDump();
0N/A
0N/A ThreadInfo[] tinfos;
0N/A long[] ids = LockingThread.getThreadIds();
0N/A
0N/A // Dump all threads with locked monitors
0N/A tinfos = mbean.dumpAllThreads(true, false);
0N/A LockingThread.checkLockedMonitors(tinfos);
0N/A
0N/A // Dump all threads with locked monitors and locked synchronizers
0N/A tinfos = mbean.dumpAllThreads(true, true);
0N/A LockingThread.checkLockedMonitors(tinfos);
0N/A
0N/A // Test getThreadInfo with locked monitors
0N/A tinfos = mbean.getThreadInfo(ids, true, false);
0N/A if (tinfos.length != ids.length) {
0N/A throw new RuntimeException("Number of ThreadInfo objects = " +
0N/A tinfos.length + " not matched. Expected: " + ids.length);
0N/A }
0N/A LockingThread.checkLockedMonitors(tinfos);
0N/A
0N/A // Test getThreadInfo with locked monitors and locked synchronizers
0N/A tinfos = mbean.getThreadInfo(ids, true, true);
0N/A if (tinfos.length != ids.length) {
0N/A throw new RuntimeException("Number of ThreadInfo objects = " +
0N/A tinfos.length + " not matched. Expected: " + ids.length);
0N/A }
0N/A LockingThread.checkLockedMonitors(tinfos);
0N/A
0N/A System.out.println("Test passed");
0N/A }
0N/A}