120 lines
4.8 KiB
Java
120 lines
4.8 KiB
Java
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* This file is available under and governed by the GNU General Public
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* License version 2 only, as published by the Free Software Foundation.
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* However, the following notice accompanied the original version of this
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* file:
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*
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* Written by Martin Buchholz and Doug Lea with assistance from
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* members of JCP JSR-166 Expert Group and released to the public
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* domain, as explained at
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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/*
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* @test
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* @summary Should be able to shutdown a pool when worker creation failed.
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* @library /test/lib
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*/
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import static java.util.concurrent.TimeUnit.MILLISECONDS;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.ThreadFactory;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import jdk.test.lib.Utils;
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public class FlakyThreadFactory {
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static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000);
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void test(String[] args) throws Throwable {
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test(NullPointerException.class,
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new ThreadFactory() {
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public Thread newThread(Runnable r) {
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throw new NullPointerException();
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}});
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test(OutOfMemoryError.class,
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new ThreadFactory() {
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@SuppressWarnings("DeadThread")
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public Thread newThread(Runnable r) {
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// We expect this to throw OOME, but ...
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new Thread(null, r, "a natural OOME", 1L << 60);
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// """On some platforms, the value of the stackSize
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// parameter may have no effect whatsoever."""
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throw new OutOfMemoryError("artificial OOME");
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}});
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test(null,
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new ThreadFactory() {
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public Thread newThread(Runnable r) {
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return null;
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}});
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}
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void test(final Class<?> exceptionClass,
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final ThreadFactory failingThreadFactory)
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throws Throwable {
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ThreadFactory flakyThreadFactory = new ThreadFactory() {
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int seq = 0;
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public Thread newThread(Runnable r) {
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if (seq++ < 4)
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return new Thread(r);
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else
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return failingThreadFactory.newThread(r);
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}};
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ThreadPoolExecutor pool =
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new ThreadPoolExecutor(10, 10,
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0L, TimeUnit.SECONDS,
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new LinkedBlockingQueue(),
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flakyThreadFactory);
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try {
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for (int i = 0; i < 8; i++)
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pool.submit(new Runnable() { public void run() {} });
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check(exceptionClass == null);
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} catch (Throwable t) {
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/* t.printStackTrace(); */
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check(exceptionClass.isInstance(t));
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}
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pool.shutdown();
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check(pool.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
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}
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//--------------------- Infrastructure ---------------------------
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volatile int passed = 0, failed = 0;
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void pass() {passed++;}
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void fail() {failed++; Thread.dumpStack();}
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void fail(String msg) {System.err.println(msg); fail();}
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void unexpected(Throwable t) {failed++; t.printStackTrace();}
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void check(boolean cond) {if (cond) pass(); else fail();}
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void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else fail(x + " not equal to " + y);}
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public static void main(String[] args) throws Throwable {
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new FlakyThreadFactory().instanceMain(args);}
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public void instanceMain(String[] args) throws Throwable {
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try {test(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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}
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