--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/jvm/TestThreadExclusion.java Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2019, 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.jvm;
+
+import java.time.Duration;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.jfr.internal.JVM;
+import jdk.jfr.Recording;
+
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+import static jdk.test.lib.Asserts.assertTrue;
+
+/**
+ * @test
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @modules jdk.jfr/jdk.jfr.internal
+ * @run main/othervm jdk.jfr.jvm.TestThreadExclusion
+ */
+
+/**
+ * Starts and stops a number of threads in order.
+ * Verifies that events are in the same order.
+ */
+public class TestThreadExclusion {
+ private final static String EVENT_NAME_THREAD_START = EventNames.ThreadStart;
+ private final static String EVENT_NAME_THREAD_END = EventNames.ThreadEnd;
+ private static final String THREAD_NAME_PREFIX = "TestThread-";
+ private static JVM jvm;
+
+ public static void main(String[] args) throws Throwable {
+ // Test Java Thread Start event
+ Recording recording = new Recording();
+ recording.enable(EVENT_NAME_THREAD_START).withThreshold(Duration.ofMillis(0));
+ recording.enable(EVENT_NAME_THREAD_END).withThreshold(Duration.ofMillis(0));
+ recording.start();
+ LatchedThread[] threads = startThreads();
+ long[] javaThreadIds = getJavaThreadIds(threads);
+ stopThreads(threads);
+ recording.stop();
+ List<RecordedEvent> events = Events.fromRecording(recording);
+ verifyThreadExclusion(events, javaThreadIds);
+ }
+
+ private static void verifyThreadExclusion(List<RecordedEvent> events, long[] javaThreadIds) throws Exception {
+ for (RecordedEvent event : events) {
+ System.out.println("Event:" + event);
+ final long eventJavaThreadId = event.getThread().getJavaThreadId();
+ for (int i = 0; i < javaThreadIds.length; ++i) {
+ if (eventJavaThreadId == javaThreadIds[i]) {
+ throw new Exception("Event " + event.getEventType().getName() + " has a thread id " + eventJavaThreadId + " that should have been excluded");
+ }
+ }
+ }
+ }
+
+ private static LatchedThread[] startThreads() {
+ LatchedThread threads[] = new LatchedThread[10];
+ ThreadGroup threadGroup = new ThreadGroup("TestThreadGroup");
+ jvm = JVM.getJVM();
+ for (int i = 0; i < threads.length; i++) {
+ threads[i] = new LatchedThread(threadGroup, THREAD_NAME_PREFIX + i);
+ jvm.exclude(threads[i]);
+ threads[i].startThread();
+ System.out.println("Started thread id=" + threads[i].getId());
+ }
+ return threads;
+ }
+
+ private static long[] getJavaThreadIds(LatchedThread[] threads) {
+ long[] javaThreadIds = new long[threads.length];
+ for (int i = 0; i < threads.length; ++i) {
+ javaThreadIds[i] = threads[i].getId();
+ }
+ return javaThreadIds;
+ }
+
+ private static void stopThreads(LatchedThread[] threads) {
+ for (LatchedThread thread : threads) {
+ assertTrue(jvm.isExcluded(thread), "Thread " + thread + "should be excluded");
+ thread.stopThread();
+ while (thread.isAlive()) {
+ try {
+ Thread.sleep(5);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ }
+
+ private static class LatchedThread extends Thread {
+ private final CountDownLatch start = new CountDownLatch(1);
+ private final CountDownLatch stop = new CountDownLatch(1);
+
+ public LatchedThread(ThreadGroup threadGroup, String name) {
+ super(threadGroup, name);
+ }
+
+ public void run() {
+ start.countDown();
+ try {
+ stop.await();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+
+ public void startThread() {
+ this.start();
+ try {
+ start.await();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+
+ public void stopThread() {
+ stop.countDown();
+ }
+ }
+}