1 /*
   2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  */
  22 
  23 /*
  24  * This file is available under and governed by the GNU General Public
  25  * License version 2 only, as published by the Free Software Foundation.
  26  * However, the following notice accompanied the original version of this
  27  * file:
  28  *
  29  * Written by Doug Lea with assistance from members of JCP JSR-166
  30  * Expert Group and released to the public domain, as explained at
  31  * http://creativecommons.org/publicdomain/zero/1.0/
  32  */
  33 
  34 /*
  35  * @test
  36  * @bug 8008378
  37  * @run main/othervm -Djava.util.concurrent.ForkJoinPool.common.exceptionHandler=ThrowingRunnable
  38  *                   ThrowingRunnable
  39  * @summary FJP.execute(Runnable), uncaught exception should cause worker thread
  40  *          to die.
  41  * @author Chris Hegarty
  42  */
  43 
  44 import java.lang.Thread.UncaughtExceptionHandler;
  45 import java.util.concurrent.ForkJoinPool;
  46 import java.util.concurrent.Phaser;
  47 import java.util.concurrent.TimeUnit;
  48 
  49 public class ThrowingRunnable implements Runnable, UncaughtExceptionHandler {
  50 
  51     static final Phaser phaser = new Phaser(2);
  52 
  53     private static void realMain(String[] args) throws Throwable {
  54         ThrowingRunnable r = new ThrowingRunnable();
  55         ForkJoinPool.commonPool().execute(r);
  56         phaser.awaitAdvanceInterruptibly(phaser.arrive(), 10, TimeUnit.SECONDS);
  57         pass();
  58     }
  59 
  60     @Override
  61     public void run() {
  62         throw new RuntimeException("This is an exception.");
  63     }
  64 
  65     @Override
  66     public void uncaughtException(Thread t, Throwable e) {
  67         pass();
  68         phaser.arrive();
  69     }
  70 
  71     //--------------------- Infrastructure ---------------------------
  72     static volatile int passed = 0, failed = 0;
  73     static void pass() {passed++;}
  74     static void fail() {failed++; /*Thread.dumpStack();*/}
  75     static void fail(String msg) {System.out.println(msg); fail();}
  76     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
  77     static void check(boolean cond, String msg) {if (cond) pass(); else fail(msg);}
  78     static void equal(Object x, Object y) {
  79         if (x == null ? y == null : x.equals(y)) pass();
  80         else fail(x + " not equal to " + y);}
  81     public static void main(String[] args) throws Throwable {
  82         try {realMain(args);} catch (Throwable t) {unexpected(t);}
  83         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
  84         if (failed > 0) throw new AssertionError("Some tests failed");}
  85 }