--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/TestRecordedFullStackTrace.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,179 @@
+/*
+ * 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.api.consumer;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.jfr.consumer.RecordedFrame;
+import jdk.jfr.consumer.RecordedStackTrace;
+import jdk.jfr.consumer.RecordingFile;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+import jdk.test.lib.jfr.RecurseThread;
+
+/*
+ * @test
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.consumer.TestRecordedFullStackTrace
+ */
+public class TestRecordedFullStackTrace {
+
+ private final static String EVENT_NAME = EventNames.ExecutionSample;
+ private final static int MAX_DEPTH = 64; // currently hardcoded in jvm
+
+ public static void main(String[] args) throws Throwable {
+
+ RecurseThread[] threads = new RecurseThread[3];
+ for (int i = 0; i < threads.length; ++i) {
+ int depth = MAX_DEPTH - 1 + i;
+ threads[i] = new RecurseThread(depth);
+ threads[i].setName("recursethread-" + depth);
+ threads[i].start();
+ }
+
+ for (RecurseThread thread : threads) {
+ while (!thread.isInRunLoop()) {
+ Thread.sleep(20);
+ }
+ }
+
+ assertStackTraces(threads);
+
+ for (RecurseThread thread : threads) {
+ thread.quit();
+ thread.join();
+ }
+ }
+
+ private static void assertStackTraces(RecurseThread[] threads) throws Throwable {
+ Path path = null;
+ do {
+ Recording recording = new Recording();
+ recording.enable(EVENT_NAME).withPeriod(Duration.ofMillis(50));
+ recording.start();
+ Thread.sleep(500);
+ recording.stop();
+ // Dump the recording to a file
+ path = Files.createTempFile("recording", ".jfr");
+ System.out.println("Dumping to " + path);
+ recording.dump(path);
+ recording.close();
+ } while (!hasValidStackTraces(path, threads));
+ }
+
+ private static boolean hasValidStackTraces(Path path, RecurseThread[] threads) throws Throwable {
+ boolean[] isEventFound = new boolean[threads.length];
+
+ for (RecordedEvent event : RecordingFile.readAllEvents(path)) {
+ //System.out.println("Event: " + event);
+ String threadName = Events.assertField(event, "sampledThread.javaName").getValue();
+ long threadId = Events.assertField(event, "sampledThread.javaThreadId").getValue();
+
+ for (int threadIndex = 0; threadIndex < threads.length; ++threadIndex) {
+ RecurseThread currThread = threads[threadIndex];
+ if (threadId == currThread.getId()) {
+ System.out.println("ThreadName=" + currThread.getName() + ", depth=" + currThread.totalDepth);
+ Asserts.assertEquals(threadName, currThread.getName(), "Wrong thread name");
+ if ("recurseEnd".equals(getTopMethodName(event))) {
+ isEventFound[threadIndex] = true;
+ checkEvent(event, currThread.totalDepth);
+ break;
+ }
+ }
+ }
+ }
+
+ for (int i = 0; i < threads.length; ++i) {
+ String msg = "threadIndex=%d, recurseDepth=%d, isEventFound=%b%n";
+ System.out.printf(msg, i, threads[i].totalDepth, isEventFound[i]);
+ }
+ for (int i = 0; i < threads.length; ++i) {
+ if (!isEventFound[i]) {
+ // no assertion, let's retry.
+ // Could be race condition, i.e safe point during Thread.sleep
+ System.out.println("Falied to validate all threads, will retry.");
+ return false;
+ }
+ }
+ return true;
+ }
+
+ public static String getTopMethodName(RecordedEvent event) {
+ List<RecordedFrame> frames = event.getStackTrace().getFrames();
+ Asserts.assertFalse(frames.isEmpty(), "JavaFrames was empty");
+ return frames.get(0).getMethod().getName();
+ }
+
+ private static void checkEvent(RecordedEvent event, int expectedDepth) throws Throwable {
+ RecordedStackTrace stacktrace = null;
+ try {
+ stacktrace = event.getStackTrace();
+ List<RecordedFrame> frames = stacktrace.getFrames();
+ Asserts.assertEquals(Math.min(MAX_DEPTH, expectedDepth), frames.size(), "Wrong stacktrace depth. Expected:" + expectedDepth);
+ List<String> expectedMethods = getExpectedMethods(expectedDepth);
+ Asserts.assertEquals(expectedMethods.size(), frames.size(), "Wrong expectedMethods depth. Test error.");
+
+ for (int i = 0; i < frames.size(); ++i) {
+ String name = frames.get(i).getMethod().getName();
+ String expectedName = expectedMethods.get(i);
+ System.out.printf("method[%d]=%s, expected=%s%n", i, name, expectedName);
+ Asserts.assertEquals(name, expectedName, "Wrong method name");
+ }
+
+ boolean isTruncated = stacktrace.isTruncated();
+ boolean isTruncateExpected = expectedDepth > MAX_DEPTH;
+ Asserts.assertEquals(isTruncated, isTruncateExpected, "Wrong value for isTruncated. Expected:" + isTruncateExpected);
+
+ String firstMethod = frames.get(frames.size() - 1).getMethod().getName();
+ boolean isFullTrace = "run".equals(firstMethod);
+ String msg = String.format("Wrong values for isTruncated=%b, isFullTrace=%b", isTruncated, isFullTrace);
+ Asserts.assertTrue(isTruncated != isFullTrace, msg);
+ } catch (Throwable t) {
+ System.out.println(String.format("stacktrace:%n%s", stacktrace));
+ throw t;
+ }
+ }
+
+ private static List<String> getExpectedMethods(int depth) {
+ List<String> methods = new ArrayList<>();
+ methods.add("recurseEnd");
+ for (int i = 0; i < depth - 2; ++i) {
+ methods.add((i % 2) == 0 ? "recurseA" : "recurseB");
+ }
+ methods.add("run");
+ if (depth > MAX_DEPTH) {
+ methods = methods.subList(0, MAX_DEPTH);
+ }
+ return methods;
+ }
+}