| /* |
| * Copyright (c) 2007, 2011, 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 6571655 6571881 6574585 6571297 |
| * @summary Test various args to task scheduling methods |
| */ |
| |
| import java.util.*; |
| import java.util.concurrent.*; |
| import static java.util.concurrent.TimeUnit.*; |
| |
| public class Args { |
| static final long DELAY_MS = 30 * 1000L; |
| |
| void schedule(final Timer t, final TimerTask task, final Date d) { |
| t.schedule(task, d); |
| assertThrows |
| (IllegalStateException.class, |
| () -> t.schedule(task, d)); |
| } |
| |
| void schedule(final Timer t, final TimerTask task, final Date d, final |
| long period) { |
| t.schedule(task, d, period); |
| assertThrows |
| (IllegalStateException.class, |
| () -> t.schedule(task, d, period)); |
| } |
| |
| void scheduleAtFixedRate(final Timer t, final TimerTask task, final |
| Date d, final long period) { |
| t.scheduleAtFixedRate(task, d, period); |
| assertThrows |
| (IllegalStateException.class, |
| () -> t.scheduleAtFixedRate(task, d, period)); |
| } |
| |
| TimerTask counter(final CountDownLatch latch) { |
| return new TimerTask() { public void run() { |
| if (latch.getCount() == 0) |
| fail(String.format("Latch counted down too many times: " + |
| latch)); |
| latch.countDown(); |
| }}; |
| } |
| |
| TimerTask nop() { |
| return new TimerTask() { public void run() { }}; |
| } |
| |
| void test(String[] args) throws Throwable { |
| final Timer t = new Timer(); |
| try { |
| test(t); |
| } finally { |
| // Ensure this test doesn't interfere with subsequent |
| // tests even in case of failure. |
| t.cancel(); |
| } |
| |
| // Attempts to schedule tasks on a cancelled Timer result in ISE. |
| |
| final Date past = new Date(System.currentTimeMillis() - DELAY_MS); |
| final Date future = new Date(System.currentTimeMillis() + DELAY_MS); |
| assertThrows |
| (IllegalStateException.class, |
| () -> t.schedule(nop(), 42), |
| () -> t.schedule(nop(), 42), |
| () -> t.schedule(nop(), past), |
| () -> t.schedule(nop(), 42, 42), |
| () -> t.schedule(nop(), past, 42), |
| () -> t.scheduleAtFixedRate(nop(), 42, 42), |
| () -> t.scheduleAtFixedRate(nop(), past, 42), |
| () -> t.scheduleAtFixedRate(nop(), future, 42)); |
| } |
| |
| void test(Timer t) throws Throwable { |
| final TimerTask x = new TimerTask() { public void run() {}}; |
| assertThrows |
| (IllegalArgumentException.class, |
| () -> t.schedule(x, -42), |
| () -> t.schedule(x, new Date(-42)), |
| |
| () -> t.schedule(x, Long.MAX_VALUE), |
| () -> t.schedule(x, -42, 42), |
| () -> t.schedule(x, new Date(-42), 42), |
| () -> t.schedule(x, Long.MAX_VALUE, 42), |
| () -> t.schedule(x, 42, 0), |
| () -> t.schedule(x, new Date(42), 0), |
| () -> t.schedule(x, 42, -42), |
| () -> t.schedule(x, new Date(42), -42), |
| |
| () -> t.scheduleAtFixedRate(x, -42, 42), |
| () -> t.scheduleAtFixedRate(x, new Date(-42), 42), |
| () -> t.scheduleAtFixedRate(x, Long.MAX_VALUE, 42), |
| () -> t.scheduleAtFixedRate(x, 42, 0), |
| () -> t.scheduleAtFixedRate(x, new Date(42), 0), |
| () -> t.scheduleAtFixedRate(x, 42, -42), |
| () -> t.scheduleAtFixedRate(x, new Date(42), -42)); |
| |
| assertThrows |
| (NullPointerException.class, |
| () -> t.schedule(null, 42), |
| () -> t.schedule(x, (Date)null), |
| |
| () -> t.schedule(null, 42, 42), |
| () -> t.schedule(x, (Date)null, 42), |
| |
| () -> t.scheduleAtFixedRate(null, 42, 42), |
| () -> t.scheduleAtFixedRate(x, (Date)null, 42)); |
| |
| // Create local classes for clearer diagnostics in case of failure |
| class OneShotLatch extends CountDownLatch { |
| OneShotLatch() { super(1); } |
| } |
| class FixedDelayLatch extends CountDownLatch { |
| FixedDelayLatch() { super(1); } |
| } |
| class FixedRateLatch extends CountDownLatch { |
| FixedRateLatch() { super(11); } |
| } |
| final CountDownLatch y1 = new OneShotLatch(); |
| final CountDownLatch y2 = new FixedDelayLatch(); |
| final CountDownLatch y3 = new FixedRateLatch(); |
| |
| final long start = System.currentTimeMillis(); |
| final Date past = new Date(start - (10 * DELAY_MS + DELAY_MS / 2)); |
| |
| schedule( t, counter(y1), past); |
| schedule( t, counter(y2), past, DELAY_MS); |
| scheduleAtFixedRate(t, counter(y3), past, DELAY_MS); |
| |
| check(y1.await(DELAY_MS / 4, MILLISECONDS)); |
| check(y2.await(DELAY_MS / 4, MILLISECONDS)); |
| check(y3.await(DELAY_MS / 4, MILLISECONDS)); |
| |
| final long elapsed = System.currentTimeMillis() - start; |
| if (elapsed >= DELAY_MS / 2) |
| fail(String.format("Test took too long: elapsed=%d%n", |
| elapsed)); |
| } |
| |
| //--------------------- 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 Args().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");} |
| interface F { void f() throws Throwable; } |
| void assertThrows(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);}} |
| } |
| |