J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 6415572 |
| 27 | * @summary Check exceptional behavior in run and done methods |
| 28 | */ |
| 29 | |
| 30 | import java.util.concurrent.*; |
| 31 | |
| 32 | public class Throw { |
| 33 | |
| 34 | @SuppressWarnings("deprecation") |
| 35 | static void THROW(final Throwable t) { |
| 36 | if (t != null) |
| 37 | Thread.currentThread().stop(t); |
| 38 | } |
| 39 | |
| 40 | Callable<Void> thrower(final Throwable t) { |
| 41 | return new Callable<Void>() { public Void call() { |
| 42 | THROW(t); return null; }}; |
| 43 | } |
| 44 | |
| 45 | @SuppressWarnings("serial") |
| 46 | private static class DoneError extends Error {} |
| 47 | |
| 48 | @SuppressWarnings("serial") |
| 49 | private static class DoneException extends RuntimeException {} |
| 50 | |
| 51 | static class MyFutureTask extends FutureTask<Void> { |
| 52 | MyFutureTask(Callable<Void> task) { super(task); } |
| 53 | public boolean runAndReset() { return super.runAndReset(); } |
| 54 | } |
| 55 | |
| 56 | MyFutureTask checkTask(final MyFutureTask task) { |
| 57 | check(! task.isCancelled()); |
| 58 | check(! task.isDone()); |
| 59 | return task; |
| 60 | } |
| 61 | |
| 62 | MyFutureTask taskFor(final Throwable callableThrowable, |
| 63 | final Throwable doneThrowable) { |
| 64 | return checkTask( |
| 65 | new MyFutureTask(thrower(callableThrowable)) { |
| 66 | protected void done() { THROW(doneThrowable); }}); |
| 67 | } |
| 68 | |
| 69 | void test(String[] args) throws Throwable { |
| 70 | final Throwable[] callableThrowables = { |
| 71 | null, new Exception(), new Error(), new RuntimeException() }; |
| 72 | final Throwable[] doneThrowables = { |
| 73 | new DoneError(), new DoneException() }; |
| 74 | for (final Throwable c : callableThrowables) { |
| 75 | for (final Throwable d : doneThrowables) { |
| 76 | THROWS(d.getClass(), |
| 77 | new F(){void f(){ |
| 78 | taskFor(c, d).cancel(false);}}, |
| 79 | new F(){void f(){ |
| 80 | taskFor(c, d).run();}}); |
| 81 | if (c != null) |
| 82 | THROWS(d.getClass(), |
| 83 | new F(){void f(){ |
| 84 | taskFor(c, d).runAndReset();}}); |
| 85 | } |
| 86 | |
| 87 | try { |
| 88 | final MyFutureTask task = taskFor(c, null); |
| 89 | check(task.cancel(false)); |
| 90 | THROWS(CancellationException.class, |
| 91 | new F(){void f() throws Throwable { task.get(); }}); |
| 92 | } catch (Throwable t) { unexpected(t); } |
| 93 | |
| 94 | if (c != null) { |
| 95 | final MyFutureTask task = taskFor(c, null); |
| 96 | task.run(); |
| 97 | try { |
| 98 | task.get(); |
| 99 | fail("Expected ExecutionException"); |
| 100 | } catch (ExecutionException ee) { |
| 101 | equal(c.getClass(), ee.getCause().getClass()); |
| 102 | } catch (Throwable t) { unexpected(t); } |
| 103 | } |
| 104 | |
| 105 | if (c != null) { |
| 106 | final MyFutureTask task = taskFor(c, null); |
| 107 | task.runAndReset(); |
| 108 | try { |
| 109 | task.get(); |
| 110 | fail("Expected ExecutionException"); |
| 111 | } catch (ExecutionException ee) { |
| 112 | check(c.getClass().isInstance(ee.getCause())); |
| 113 | } catch (Throwable t) { unexpected(t); } |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | //--------------------- Infrastructure --------------------------- |
| 119 | volatile int passed = 0, failed = 0; |
| 120 | void pass() {passed++;} |
| 121 | void fail() {failed++; Thread.dumpStack();} |
| 122 | void fail(String msg) {System.err.println(msg); fail();} |
| 123 | void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| 124 | void check(boolean cond) {if (cond) pass(); else fail();} |
| 125 | void equal(Object x, Object y) { |
| 126 | if (x == null ? y == null : x.equals(y)) pass(); |
| 127 | else fail(x + " not equal to " + y);} |
| 128 | public static void main(String[] args) throws Throwable { |
| 129 | new Throw().instanceMain(args);} |
| 130 | void instanceMain(String[] args) throws Throwable { |
| 131 | try {test(args);} catch (Throwable t) {unexpected(t);} |
| 132 | System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| 133 | if (failed > 0) throw new AssertionError("Some tests failed");} |
| 134 | abstract class F {abstract void f() throws Throwable;} |
| 135 | void THROWS(Class<? extends Throwable> k, F... fs) { |
| 136 | for (F f : fs) |
| 137 | try {f.f(); fail("Expected " + k.getName() + " not thrown");} |
| 138 | catch (Throwable t) { |
| 139 | if (k.isAssignableFrom(t.getClass())) pass(); |
| 140 | else unexpected(t);}} |
| 141 | } |