hotspot/test/serviceability/jvmti/GetOwnedMonitorInfo/GetOwnedMonitorInfoTest.java
changeset 46765 07298ebd9367
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/jvmti/GetOwnedMonitorInfo/GetOwnedMonitorInfoTest.java	Mon Aug 07 12:34:21 2017 -0700
@@ -0,0 +1,79 @@
+/*
+ * 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");
+        }
+    }
+}