jdk/test/java/util/concurrent/Executors/AutoShutdown.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/concurrent/Executors/AutoShutdown.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6399443
+ * @summary Check for auto-shutdown and gc of singleThreadExecutors
+ * @author Martin Buchholz
+ */
+
+import java.io.*;
+import java.util.*;
+import java.util.concurrent.*;
+import static java.util.concurrent.Executors.*;
+
+public class AutoShutdown {
+    private static void waitForFinalizersToRun() throws Throwable {
+        System.gc(); System.runFinalization(); Thread.sleep(10);
+        System.gc(); System.runFinalization(); Thread.sleep(10);
+    }
+
+    private static void realMain(String[] args) throws Throwable {
+        Runnable trivialRunnable = new Runnable() { public void run() {}};
+        int count0 = Thread.activeCount();
+        newSingleThreadExecutor().execute(trivialRunnable);
+        newSingleThreadExecutor(defaultThreadFactory()).execute(trivialRunnable);
+        Thread.sleep(100);
+        equal(Thread.activeCount(), count0 + 2);
+        waitForFinalizersToRun();
+        equal(Thread.activeCount(), count0);
+    }
+
+    //--------------------- Infrastructure ---------------------------
+    static volatile int passed = 0, failed = 0;
+    static void pass() {passed++;}
+    static void fail() {failed++; Thread.dumpStack();}
+    static void fail(String msg) {System.out.println(msg); fail();}
+    static void unexpected(Throwable t) {failed++; t.printStackTrace();}
+    static void equal(Object x, Object y) {
+        if (x == null ? y == null : x.equals(y)) pass();
+        else fail(x + " not equal to " + y);}
+    public static void main(String[] args) throws Throwable {
+        try {realMain(args);} catch (Throwable t) {unexpected(t);}
+        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
+        if (failed > 0) throw new AssertionError("Some tests failed");}
+}