--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/RunFinalizationTest.java Fri Jan 30 20:00:57 2015 +0100
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.ReentrantLock;
+
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.run_finalization
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng RunFinalizationTest
+ */
+public class RunFinalizationTest {
+ static ReentrantLock lock = new ReentrantLock();
+ static Condition cond = lock.newCondition();
+ static volatile boolean wasFinalized = false;
+ static volatile boolean wasInitialized = false;
+
+ class MyObject {
+ public MyObject() {
+ /* Make sure object allocation/deallocation is not optimized out */
+ wasInitialized = true;
+ }
+
+ protected void finalize() {
+ lock.lock();
+ wasFinalized = true;
+ cond.signalAll();
+ lock.unlock();
+ }
+ }
+
+ public static MyObject o;
+
+ public void run(CommandExecutor executor) {
+ lock.lock();
+ o = new MyObject();
+ o = null;
+ System.gc();
+ executor.execute("GC.run_finalization");
+
+ int waited = 0;
+ int waitTime = 15;
+
+ try {
+ System.out.println("Waiting for signal from finalizer");
+
+ while (!cond.await(waitTime, TimeUnit.SECONDS)) {
+ waited += waitTime;
+ System.out.println(String.format("Waited %d seconds", waited));
+ }
+
+ System.out.println("Received signal");
+ } catch (InterruptedException e) {
+ Assert.fail("Test error: Interrupted while waiting for signal from finalizer", e);
+ } finally {
+ lock.unlock();
+ }
+
+ if (!wasFinalized) {
+ Assert.fail("Test failure: Object was not finalized");
+ }
+ }
+
+ @Test
+ public void jmx() {
+ run(new JMXExecutor());
+ }
+}