79 lines
3.0 KiB
Java
79 lines
3.0 KiB
Java
/*
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* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
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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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* @test
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* @bug 6355327
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* @summary DelayQueue iterators should support concurrent modification
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* @author Martin Buchholz
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*/
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import java.util.Arrays;
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import java.util.Iterator;
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import java.util.concurrent.DelayQueue;
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import java.util.concurrent.Delayed;
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import java.util.concurrent.TimeUnit;
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public class Iterate {
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private static class Godot implements Delayed {
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public long getDelay(TimeUnit unit) {return Long.MAX_VALUE;}
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public int compareTo(Delayed other) {return 0;}
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}
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private static void realMain(String[] args) throws Throwable {
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Godot[] godots = new Godot[] { new Godot(), new Godot(), new Godot() };
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DelayQueue<Godot> q = new DelayQueue<>(Arrays.asList(godots));
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Iterator<Godot> it = q.iterator();
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q.clear();
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check(it.hasNext());
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equal(it.next(), godots[0]);
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it.remove();
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check(q.isEmpty());
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q.addAll(Arrays.asList(godots));
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it = q.iterator();
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check(it.hasNext());
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it.next();
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equal(it.next(), godots[1]);
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it.remove();
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equal(q.size(), 2);
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check(q.contains(godots[0]));
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check(q.contains(godots[2]));
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}
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//--------------------- Infrastructure ---------------------------
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static volatile int passed = 0, failed = 0;
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static void pass() {passed++;}
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static void fail() {failed++; Thread.dumpStack();}
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static void fail(String msg) {System.out.println(msg); fail();}
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static void unexpected(Throwable t) {failed++; t.printStackTrace();}
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static void check(boolean cond) {if (cond) pass(); else fail();}
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static 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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try {realMain(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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