--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/oldobject/TestListenerLeak.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 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.oldobject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.jfr.internal.test.WhiteBox;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @key jfr
+ * @requires vm.gc == "null"
+ * @library /test/lib /test/jdk
+ * @modules jdk.jfr/jdk.jfr.internal.test
+ * @run main/othervm -XX:TLABSize=2k jdk.jfr.event.oldobject.TestListenerLeak
+ */
+public class TestListenerLeak {
+
+ private interface TestListener {
+ void onListen();
+ }
+
+ static class Stuff {
+ }
+
+ static class ListenerThread extends Thread {
+
+ private List<Stuff[]> stuff;
+
+ public ListenerThread(List<Stuff[]> stuff) {
+ this.stuff = stuff;
+ }
+
+ public void run() {
+ listener.add(new TestListener() {
+ @Override
+ public void onListen() {
+ System.out.println(stuff);
+ }
+ });
+ }
+ }
+
+ private static List<TestListener> listener = new ArrayList<>();
+
+ public static void main(String[] args) throws Exception {
+ WhiteBox.setWriteAllObjectSamples(true);
+
+ try (Recording r = new Recording()) {
+ r.enable(EventNames.OldObjectSample).withStackTrace().with("cutoff", "infinity");
+ r.start();
+ listenerLeak();
+ r.stop();
+ List<RecordedEvent> events = Events.fromRecording(r);
+ if (OldObjects.countMatchingEvents(events, Stuff[].class, null, null, -1, "listenerLeak") == 0) {
+ throw new Exception("Could not find leak with " + Stuff[].class);
+ }
+ }
+ }
+
+ private static void listenerLeak() throws InterruptedException {
+ List<Stuff[]> stuff = new ArrayList<>(OldObjects.MIN_SIZE);
+ for (int i = 0; i < OldObjects.MIN_SIZE; i++) {
+ // Allocate array to trigger sampling code path for interpreter / c1
+ stuff.add(new Stuff[0]);
+ }
+
+ ListenerThread t = new ListenerThread(stuff);
+ t.start();
+ t.join();
+ }
+
+}