| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| /** |
| * @test |
| * @bug 8185164 |
| * @summary Checks that a contended monitor does not show up in the list of owned monitors |
| * @compile GetOwnedMonitorInfoTest.java |
| * @run main/othervm/native -agentlib:GetOwnedMonitorInfoTest GetOwnedMonitorInfoTest |
| */ |
| |
| import java.io.PrintStream; |
| |
| public class GetOwnedMonitorInfoTest { |
| |
| static { |
| try { |
| System.loadLibrary("GetOwnedMonitorInfoTest"); |
| } catch (UnsatisfiedLinkError ule) { |
| System.err.println("Could not load GetOwnedMonitorInfoTest library"); |
| System.err.println("java.library.path: " |
| + System.getProperty("java.library.path")); |
| throw ule; |
| } |
| } |
| |
| private static native int check(); |
| private static native boolean hasEventPosted(); |
| |
| public static void main(String[] args) throws Exception { |
| final GetOwnedMonitorInfoTest lock = new GetOwnedMonitorInfoTest(); |
| |
| Thread t1 = new Thread(() -> { |
| synchronized (lock) { |
| System.out.println("Thread in sync section: " |
| + Thread.currentThread().getName()); |
| } |
| }); |
| |
| // Make sure t1 contends on the monitor. |
| synchronized (lock) { |
| System.out.println("Main starting worker thread."); |
| t1.start(); |
| |
| // Wait for the MonitorContendedEnter event |
| while (!hasEventPosted()) { |
| System.out.println("Main waiting for event."); |
| Thread.sleep(100); |
| } |
| } |
| |
| t1.join(); |
| |
| if (check() != 0) { |
| throw new RuntimeException("FAILED status returned from the agent"); |
| } |
| } |
| } |