| /* |
| * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved. |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 6415572 |
| * @summary Check exceptional behavior in run and done methods |
| */ |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CancellationException; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.FutureTask; |
| |
| public class Throw { |
| |
| static void THROW(final Throwable t) { |
| if (t != null) |
| Throw.<RuntimeException>uncheckedThrow(t); |
| } |
| |
| Callable<Void> thrower(final Throwable t) { |
| return new Callable<Void>() { public Void call() { |
| THROW(t); return null; }}; |
| } |
| |
| @SuppressWarnings("serial") |
| private static class DoneError extends Error {} |
| |
| @SuppressWarnings("serial") |
| private static class DoneException extends RuntimeException {} |
| |
| static class MyFutureTask extends FutureTask<Void> { |
| MyFutureTask(Callable<Void> task) { super(task); } |
| public boolean runAndReset() { return super.runAndReset(); } |
| } |
| |
| MyFutureTask checkTask(final MyFutureTask task) { |
| check(! task.isCancelled()); |
| check(! task.isDone()); |
| return task; |
| } |
| |
| MyFutureTask taskFor(final Throwable callableThrowable, |
| final Throwable doneThrowable) { |
| return checkTask( |
| new MyFutureTask(thrower(callableThrowable)) { |
| protected void done() { THROW(doneThrowable); }}); |
| } |
| |
| void test(String[] args) throws Throwable { |
| final Throwable[] callableThrowables = { |
| null, new Exception(), new Error(), new RuntimeException() }; |
| final Throwable[] doneThrowables = { |
| new DoneError(), new DoneException() }; |
| for (final Throwable c : callableThrowables) { |
| for (final Throwable d : doneThrowables) { |
| THROWS(d.getClass(), |
| new F(){void f(){ |
| taskFor(c, d).cancel(false);}}, |
| new F(){void f(){ |
| taskFor(c, d).run();}}); |
| if (c != null) |
| THROWS(d.getClass(), |
| new F(){void f(){ |
| taskFor(c, d).runAndReset();}}); |
| } |
| |
| try { |
| final MyFutureTask task = taskFor(c, null); |
| check(task.cancel(false)); |
| THROWS(CancellationException.class, |
| new F(){void f() throws Throwable { task.get(); }}); |
| } catch (Throwable t) { unexpected(t); } |
| |
| if (c != null) { |
| final MyFutureTask task = taskFor(c, null); |
| task.run(); |
| try { |
| task.get(); |
| fail("Expected ExecutionException"); |
| } catch (ExecutionException ee) { |
| equal(c.getClass(), ee.getCause().getClass()); |
| } catch (Throwable t) { unexpected(t); } |
| } |
| |
| if (c != null) { |
| final MyFutureTask task = taskFor(c, null); |
| task.runAndReset(); |
| try { |
| task.get(); |
| fail("Expected ExecutionException"); |
| } catch (ExecutionException ee) { |
| check(c.getClass().isInstance(ee.getCause())); |
| } catch (Throwable t) { unexpected(t); } |
| } |
| } |
| } |
| |
| //--------------------- 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 Throw().instanceMain(args);} |
| 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");} |
| abstract class F {abstract void f() throws Throwable;} |
| void THROWS(Class<? extends Throwable> k, F... fs) { |
| for (F f : fs) |
| try {f.f(); fail("Expected " + k.getName() + " not thrown");} |
| catch (Throwable t) { |
| if (k.isAssignableFrom(t.getClass())) pass(); |
| else unexpected(t);}} |
| @SuppressWarnings("unchecked") |
| static <T extends Throwable> void uncheckedThrow(Throwable t) throws T { |
| throw (T)t; // rely on vacuous cast |
| } |
| } |