| /* |
| * 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. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * Written by Martin Buchholz and Doug Lea with assistance from |
| * members of JCP JSR-166 Expert Group and released to the public |
| * domain, as explained at |
| * http://creativecommons.org/publicdomain/zero/1.0/ |
| */ |
| |
| /* |
| * @test |
| * @summary Should be able to shutdown a pool when worker creation failed. |
| * @library /lib/testlibrary/ |
| */ |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import jdk.testlibrary.Utils; |
| |
| public class FlakyThreadFactory { |
| static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000); |
| |
| void test(String[] args) throws Throwable { |
| test(NullPointerException.class, |
| new ThreadFactory() { |
| public Thread newThread(Runnable r) { |
| throw new NullPointerException(); |
| }}); |
| test(OutOfMemoryError.class, |
| new ThreadFactory() { |
| @SuppressWarnings("DeadThread") |
| public Thread newThread(Runnable r) { |
| // We expect this to throw OOME, but ... |
| new Thread(null, r, "a natural OOME", 1L << 60); |
| // """On some platforms, the value of the stackSize |
| // parameter may have no effect whatsoever.""" |
| throw new OutOfMemoryError("artificial OOME"); |
| }}); |
| test(null, |
| new ThreadFactory() { |
| public Thread newThread(Runnable r) { |
| return null; |
| }}); |
| } |
| |
| void test(final Class<?> exceptionClass, |
| final ThreadFactory failingThreadFactory) |
| throws Throwable { |
| ThreadFactory flakyThreadFactory = new ThreadFactory() { |
| int seq = 0; |
| public Thread newThread(Runnable r) { |
| if (seq++ < 4) |
| return new Thread(r); |
| else |
| return failingThreadFactory.newThread(r); |
| }}; |
| ThreadPoolExecutor pool = |
| new ThreadPoolExecutor(10, 10, |
| 0L, TimeUnit.SECONDS, |
| new LinkedBlockingQueue(), |
| flakyThreadFactory); |
| try { |
| for (int i = 0; i < 8; i++) |
| pool.submit(new Runnable() { public void run() {} }); |
| check(exceptionClass == null); |
| } catch (Throwable t) { |
| /* t.printStackTrace(); */ |
| check(exceptionClass.isInstance(t)); |
| } |
| pool.shutdown(); |
| check(pool.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| } |
| |
| //--------------------- Infrastructure --------------------------- |
| volatile int passed = 0, failed = 0; |
| void pass() {passed++;} |
| void fail() {failed++; Thread.dumpStack();} |
| void fail(String msg) {System.err.println(msg); fail();} |
| void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| void check(boolean cond) {if (cond) pass(); else fail();} |
| 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 { |
| new FlakyThreadFactory().instanceMain(args);} |
| public void instanceMain(String[] args) throws Throwable { |
| try {test(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");} |
| } |