test/jdk/jdk/jfr/event/runtime/TestJavaMonitorWaitTimeOut.java
changeset 50113 caf115bb98ad
child 51214 67736b4846a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/runtime/TestJavaMonitorWaitTimeOut.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2013, 2018, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package jdk.jfr.event.runtime;
+
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedClass;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.jfr.consumer.RecordedThread;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.event.runtime.TestJavaMonitorWaitTimeOut
+ */
+public class TestJavaMonitorWaitTimeOut {
+
+    static final class Lock {
+
+    }
+
+    private static final String THREAD_NAME = "Notifier";
+
+    static class Notifierhread extends Thread {
+        private final Object lock;
+
+        Notifierhread(Object lock) {
+            super(THREAD_NAME);
+            this.lock = lock;
+        }
+
+        public void run() {
+            synchronized (lock) {
+                lock.notify();
+            }
+        }
+    }
+
+    public static void main(String[] args) throws Throwable {
+        try (Recording recording = new Recording()) {
+            recording.enable(EventNames.JavaMonitorWait).withoutThreshold().withoutStackTrace();
+            recording.start();
+            Lock lock = new Lock();
+
+            synchronized (lock) {
+                // event without notifier, should be null
+                lock.wait(10);
+            }
+            Notifierhread s = new Notifierhread(lock);
+
+            synchronized (lock) {
+                s.start();
+                // event with a notifier
+                lock.wait(1_000_000);
+                s.join();
+            }
+
+            synchronized (lock) {
+                // event without a notifier, should be null
+                lock.wait(11);
+            }
+            recording.stop();
+            List<RecordedEvent> events = Events.fromRecording(recording);
+            for (RecordedEvent e : events) {
+                if (isWaitEvent(e)) {
+                    System.out.println(e);
+                }
+            }
+            assertTimeOutEvent(events, 10, null);
+            assertTimeOutEvent(events, 1_000_000, THREAD_NAME);
+            assertTimeOutEvent(events, 11, null);
+        }
+    }
+
+    private static boolean isWaitEvent(RecordedEvent event) {
+        RecordedClass t = event.getValue("monitorClass");
+        return t != null && t.getName().equals(Lock.class.getName());
+    }
+
+    private static void assertTimeOutEvent(List<RecordedEvent> events, long timeout, String expectedThreadName) {
+        for (RecordedEvent e : events) {
+            if (isWaitEvent(e)) {
+                Long l = e.getValue("timeout");
+                if (l == timeout) {
+                    RecordedThread notifier = e.getValue("notifier");
+                    String threadName = null;
+                    if (notifier != null) {
+                        threadName = notifier.getJavaName();
+                    }
+                    Asserts.assertEquals(threadName, expectedThreadName, "Invalid thread");
+                    return;
+                }
+            }
+        }
+        Asserts.fail("Could not find event with monitorClass" + Lock.class.getName());
+    }
+}