--- /dev/null 2017-08-07 09:17:43.097837410 +0900 +++ new/test/serviceability/jvmti/GetOwnedMonitorInfo/GetOwnedMonitorInfoTest.java 2017-08-07 17:50:12.723029531 +0900 @@ -0,0 +1,80 @@ +/* + * 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 + * @modules jdk.jdi + * @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"); + } + } +}