--- jsr166/src/test/tck/ForkJoinPoolTest.java 2009/08/01 21:56:02 1.4 +++ jsr166/src/test/tck/ForkJoinPoolTest.java 2015/10/04 07:42:07 1.62 @@ -1,25 +1,45 @@ /* * Written by Doug Lea with assistance from members of JCP JSR-166 * Expert Group and released to the public domain, as explained at - * http://creativecommons.org/licenses/publicdomain + * http://creativecommons.org/publicdomain/zero/1.0/ */ +import static java.util.concurrent.TimeUnit.MILLISECONDS; +import static java.util.concurrent.TimeUnit.NANOSECONDS; -import junit.framework.*; -import java.util.*; -import java.util.concurrent.*; -import java.util.concurrent.locks.*; -import java.security.*; +import java.security.PrivilegedAction; +import java.security.PrivilegedExceptionAction; +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; +import java.util.concurrent.Callable; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.Executors; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.ForkJoinPool; +import java.util.concurrent.ForkJoinTask; +import java.util.concurrent.ForkJoinWorkerThread; +import java.util.concurrent.Future; +import java.util.concurrent.RecursiveTask; +import java.util.concurrent.RejectedExecutionException; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.locks.ReentrantLock; + +import junit.framework.AssertionFailedError; +import junit.framework.Test; +import junit.framework.TestSuite; public class ForkJoinPoolTest extends JSR166TestCase { public static void main(String[] args) { - junit.textui.TestRunner.run (suite()); + main(suite(), args); } + public static Test suite() { return new TestSuite(ForkJoinPoolTest.class); } - /** + /* * Testing coverage notes: * * 1. shutdown and related methods are tested via super.joinPool. @@ -38,7 +58,7 @@ public class ForkJoinPoolTest extends JS // Some classes to test extension and factory methods static class MyHandler implements Thread.UncaughtExceptionHandler { - int catches = 0; + volatile int catches = 0; public void uncaughtException(Thread t, Throwable e) { ++catches; } @@ -47,11 +67,12 @@ public class ForkJoinPoolTest extends JS // to test handlers static class FailingFJWSubclass extends ForkJoinWorkerThread { public FailingFJWSubclass(ForkJoinPool p) { super(p) ; } - protected void onStart() { throw new Error(); } + protected void onStart() { super.onStart(); throw new Error(); } } - static class FailingThreadFactory implements ForkJoinPool.ForkJoinWorkerThreadFactory { - int calls = 0; + static class FailingThreadFactory + implements ForkJoinPool.ForkJoinWorkerThreadFactory { + volatile int calls = 0; public ForkJoinWorkerThread newThread(ForkJoinPool p) { if (++calls > 1) return null; return new FailingFJWSubclass(p); @@ -86,7 +107,7 @@ public class ForkJoinPoolTest extends JS static final class FibTask extends RecursiveTask { final int number; FibTask(int n) { number = n; } - public Integer compute() { + protected Integer compute() { int n = number; if (n <= 1) return n; @@ -114,7 +135,7 @@ public class ForkJoinPoolTest extends JS this.locker = locker; this.lock = lock; } - public Integer compute() { + protected Integer compute() { int n; LockingFibTask f1 = null; LockingFibTask f2 = null; @@ -135,28 +156,24 @@ public class ForkJoinPoolTest extends JS } /** - * Succesfully constructed pool reports default factory, + * Successfully constructed pool reports default factory, * parallelism and async mode policies, no active threads or * tasks, and quiescent running state. */ public void testDefaultInitialState() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - assertTrue(p.getFactory() == ForkJoinPool.defaultForkJoinWorkerThreadFactory); - assertTrue(p.isQuiescent()); - assertTrue(p.getMaintainsParallelism()); + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { + assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, + p.getFactory()); assertFalse(p.getAsyncMode()); - assertTrue(p.getActiveThreadCount() == 0); - assertTrue(p.getStealCount() == 0); - assertTrue(p.getQueuedTaskCount() == 0); - assertTrue(p.getQueuedSubmissionCount() == 0); + assertEquals(0, p.getActiveThreadCount()); + assertEquals(0, p.getStealCount()); + assertEquals(0, p.getQueuedTaskCount()); + assertEquals(0, p.getQueuedSubmissionCount()); assertFalse(p.hasQueuedSubmissions()); assertFalse(p.isShutdown()); assertFalse(p.isTerminating()); assertFalse(p.isTerminated()); - } finally { - joinPool(p); } } @@ -167,8 +184,7 @@ public class ForkJoinPoolTest extends JS try { new ForkJoinPool(-1); shouldThrow(); - } - catch (IllegalArgumentException success) {} + } catch (IllegalArgumentException success) {} } /** @@ -176,54 +192,18 @@ public class ForkJoinPoolTest extends JS */ public void testConstructor2() { try { - new ForkJoinPool(1, null); + new ForkJoinPool(1, null, null, false); shouldThrow(); - } - catch (NullPointerException success) {} + } catch (NullPointerException success) {} } - /** * getParallelism returns size set in constructor */ public void testGetParallelism() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - assertTrue(p.getParallelism() == 1); - } finally { - joinPool(p); - } - } - - /** - * setParallelism changes reported parallelism level. - */ - public void testSetParallelism() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - assertTrue(p.getParallelism() == 1); - p.setParallelism(2); - assertTrue(p.getParallelism() == 2); - } finally { - joinPool(p); - } - } - - /** - * setParallelism with argument <= 0 throws exception - */ - public void testSetParallelism2() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - assertTrue(p.getParallelism() == 1); - p.setParallelism(-2); - shouldThrow(); - } catch (IllegalArgumentException success) { - } finally { - joinPool(p); + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { + assertEquals(1, p.getParallelism()); } } @@ -231,74 +211,40 @@ public class ForkJoinPoolTest extends JS * getPoolSize returns number of started workers. */ public void testGetPoolSize() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - assertTrue(p.getPoolSize() == 0); + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { + assertEquals(0, p.getActiveThreadCount()); Future future = p.submit(new StringTask()); - assertTrue(p.getPoolSize() == 1); - - } finally { - joinPool(p); + assertEquals(1, p.getPoolSize()); } } /** - * setMaximumPoolSize changes size reported by getMaximumPoolSize. + * awaitTermination on a non-shutdown pool times out */ - public void testSetMaximumPoolSize() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - p.setMaximumPoolSize(2); - assertTrue(p.getMaximumPoolSize() == 2); - } finally { - joinPool(p); - } - } - - /** - * setMaximumPoolSize with argument <= 0 throws exception - */ - public void testSetMaximumPoolSize2() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - p.setMaximumPoolSize(-2); - shouldThrow(); - } catch (IllegalArgumentException success) { - } finally { - joinPool(p); - } - } - - /** - * setMaintainsParallelism changes policy reported by - * getMaintainsParallelism. - */ - public void testSetMaintainsParallelism() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - p.setMaintainsParallelism(false); - assertFalse(p.getMaintainsParallelism()); - } finally { - joinPool(p); - } - } - - /** - * setAsyncMode changes policy reported by - * getAsyncMode. - */ - public void testSetAsyncMode() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - p.setAsyncMode(true); - assertTrue(p.getAsyncMode()); - } finally { - joinPool(p); + public void testAwaitTermination_timesOut() throws InterruptedException { + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { + assertFalse(p.isTerminated()); + assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); + assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); + assertFalse(p.awaitTermination(-1L, NANOSECONDS)); + assertFalse(p.awaitTermination(-1L, MILLISECONDS)); + assertFalse(p.awaitTermination(0L, NANOSECONDS)); + assertFalse(p.awaitTermination(0L, MILLISECONDS)); + long timeoutNanos = 999999L; + long startTime = System.nanoTime(); + assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); + assertTrue(System.nanoTime() - startTime >= timeoutNanos); + assertFalse(p.isTerminated()); + startTime = System.nanoTime(); + long timeoutMillis = timeoutMillis(); + assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); + assertTrue(millisElapsedSince(startTime) >= timeoutMillis); + assertFalse(p.isTerminated()); + p.shutdown(); + assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); + assertTrue(p.isTerminated()); } } @@ -308,83 +254,75 @@ public class ForkJoinPoolTest extends JS * Additionally tests: Overriding ForkJoinWorkerThread.onStart * performs its defined action */ - public void testSetUncaughtExceptionHandler() { - ForkJoinPool p = null; + public void testSetUncaughtExceptionHandler() throws InterruptedException { + final CountDownLatch uehInvoked = new CountDownLatch(1); + final Thread.UncaughtExceptionHandler eh = + new Thread.UncaughtExceptionHandler() { + public void uncaughtException(Thread t, Throwable e) { + uehInvoked.countDown(); + }}; + ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(), + eh, false); try { - p = new ForkJoinPool(1, new FailingThreadFactory()); - MyHandler eh = new MyHandler(); - p.setUncaughtExceptionHandler(eh); - assertEquals(eh, p.getUncaughtExceptionHandler()); - p.execute(new FailingTask()); - Thread.sleep(MEDIUM_DELAY_MS); - assertTrue(eh.catches > 0); - } catch (InterruptedException e) { - unexpectedException(); + assertSame(eh, p.getUncaughtExceptionHandler()); + try { + p.execute(new FibTask(8)); + assertTrue(uehInvoked.await(MEDIUM_DELAY_MS, MILLISECONDS)); + } catch (RejectedExecutionException ok) { + } } finally { + p.shutdownNow(); // failure might have prevented processing task joinPool(p); } } /** - * setUncaughtExceptionHandler of null removes handler + * After invoking a single task, isQuiescent eventually becomes + * true, at which time queues are empty, threads are not active, + * the task has completed successfully, and construction + * parameters continue to hold */ - public void testSetUncaughtExceptionHandler2() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); - p.setUncaughtExceptionHandler(null); - assertNull(p.getUncaughtExceptionHandler()); - } finally { - joinPool(p); - } - } - + public void testIsQuiescent() throws Exception { + ForkJoinPool p = new ForkJoinPool(2); + try (PoolCleaner cleaner = cleaner(p)) { + assertTrue(p.isQuiescent()); + long startTime = System.nanoTime(); + FibTask f = new FibTask(20); + p.invoke(f); + assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, + p.getFactory()); + while (! p.isQuiescent()) { + if (millisElapsedSince(startTime) > LONG_DELAY_MS) + throw new AssertionFailedError("timed out"); + assertFalse(p.getAsyncMode()); + assertFalse(p.isShutdown()); + assertFalse(p.isTerminating()); + assertFalse(p.isTerminated()); + Thread.yield(); + } - /** - * After invoking a single task, isQuiescent is true, - * queues are empty, threads are not active, and - * construction parameters continue to hold - */ - public void testisQuiescent() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(2); - p.invoke(new FibTask(20)); - assertTrue(p.getFactory() == ForkJoinPool.defaultForkJoinWorkerThreadFactory); - Thread.sleep(MEDIUM_DELAY_MS); assertTrue(p.isQuiescent()); - assertTrue(p.getMaintainsParallelism()); assertFalse(p.getAsyncMode()); - assertTrue(p.getActiveThreadCount() == 0); - assertTrue(p.getQueuedTaskCount() == 0); - assertTrue(p.getQueuedSubmissionCount() == 0); + assertEquals(0, p.getActiveThreadCount()); + assertEquals(0, p.getQueuedTaskCount()); + assertEquals(0, p.getQueuedSubmissionCount()); assertFalse(p.hasQueuedSubmissions()); assertFalse(p.isShutdown()); assertFalse(p.isTerminating()); assertFalse(p.isTerminated()); - } catch (InterruptedException e) { - unexpectedException(); - } finally { - joinPool(p); + assertTrue(f.isDone()); + assertEquals(6765, (int) f.get()); } } /** * Completed submit(ForkJoinTask) returns result */ - public void testSubmitForkJoinTask() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); + public void testSubmitForkJoinTask() throws Throwable { + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { ForkJoinTask f = p.submit(new FibTask(8)); - int r = f.get(); - assertTrue(r == 21); - } catch (ExecutionException ex) { - unexpectedException(); - } catch (InterruptedException ex) { - unexpectedException(); - } finally { - joinPool(p); + assertEquals(21, (int) f.get()); } } @@ -392,39 +330,30 @@ public class ForkJoinPoolTest extends JS * A task submitted after shutdown is rejected */ public void testSubmitAfterShutdown() { - ForkJoinPool p = null; - try { - p = new ForkJoinPool(1); + ForkJoinPool p = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(p)) { p.shutdown(); assertTrue(p.isShutdown()); - ForkJoinTask f = p.submit(new FibTask(8)); - shouldThrow(); - } catch (RejectedExecutionException success) { - } finally { - joinPool(p); + try { + ForkJoinTask f = p.submit(new FibTask(8)); + shouldThrow(); + } catch (RejectedExecutionException success) {} } } /** * Pool maintains parallelism when using ManagedBlocker */ - public void testBlockingForkJoinTask() { - ForkJoinPool p = null; + public void testBlockingForkJoinTask() throws Throwable { + ForkJoinPool p = new ForkJoinPool(4); try { - p = new ForkJoinPool(4); ReentrantLock lock = new ReentrantLock(); ManagedLocker locker = new ManagedLocker(lock); - ForkJoinTask f = new LockingFibTask(30, locker, lock); + ForkJoinTask f = new LockingFibTask(20, locker, lock); p.execute(f); - assertTrue(p.getPoolSize() >= 4); - int r = f.get(); - assertTrue(r == 832040); - } catch (ExecutionException ex) { - unexpectedException(); - } catch (InterruptedException ex) { - unexpectedException(); + assertEquals(6765, (int) f.get()); } finally { - joinPool(p); + p.shutdownNow(); // don't wait out shutdown } } @@ -432,17 +361,16 @@ public class ForkJoinPoolTest extends JS * pollSubmission returns unexecuted submitted task, if present */ public void testPollSubmission() { - SubFJP p = null; - try { - p = new SubFJP(); - ForkJoinTask a = p.submit(new MediumRunnable()); - ForkJoinTask b = p.submit(new MediumRunnable()); - ForkJoinTask c = p.submit(new MediumRunnable()); + final CountDownLatch done = new CountDownLatch(1); + SubFJP p = new SubFJP(); + try (PoolCleaner cleaner = cleaner(p)) { + ForkJoinTask a = p.submit(awaiter(done)); + ForkJoinTask b = p.submit(awaiter(done)); + ForkJoinTask c = p.submit(awaiter(done)); ForkJoinTask r = p.pollSubmission(); assertTrue(r == a || r == b || r == c); assertFalse(r.isDone()); - } finally { - joinPool(p); + done.countDown(); } } @@ -450,12 +378,12 @@ public class ForkJoinPoolTest extends JS * drainTasksTo transfers unexecuted submitted tasks, if present */ public void testDrainTasksTo() { - SubFJP p = null; - try { - p = new SubFJP(); - ForkJoinTask a = p.submit(new MediumRunnable()); - ForkJoinTask b = p.submit(new MediumRunnable()); - ForkJoinTask c = p.submit(new MediumRunnable()); + final CountDownLatch done = new CountDownLatch(1); + SubFJP p = new SubFJP(); + try (PoolCleaner cleaner = cleaner(p)) { + ForkJoinTask a = p.submit(awaiter(done)); + ForkJoinTask b = p.submit(awaiter(done)); + ForkJoinTask c = p.submit(awaiter(done)); ArrayList al = new ArrayList(); p.drainTasksTo(al); assertTrue(al.size() > 0); @@ -463,702 +391,553 @@ public class ForkJoinPoolTest extends JS assertTrue(r == a || r == b || r == c); assertFalse(r.isDone()); } - } finally { - joinPool(p); + done.countDown(); } } - // FJ Versions of AbstractExecutorService tests /** * execute(runnable) runs it to completion */ - public void testExecuteRunnable() { - try { - ExecutorService e = new ForkJoinPool(1); - TrackedShortRunnable task = new TrackedShortRunnable(); - assertFalse(task.done); - Future future = e.submit(task); - future.get(); - assertTrue(task.done); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); + public void testExecuteRunnable() throws Throwable { + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { + final AtomicBoolean done = new AtomicBoolean(false); + Future future = e.submit(new CheckedRunnable() { + public void realRun() { + done.set(true); + }}); + assertNull(future.get()); + assertNull(future.get(0, MILLISECONDS)); + assertTrue(done.get()); + assertTrue(future.isDone()); + assertFalse(future.isCancelled()); } } - /** * Completed submit(callable) returns result */ - public void testSubmitCallable() { - try { - ExecutorService e = new ForkJoinPool(1); + public void testSubmitCallable() throws Throwable { + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { Future future = e.submit(new StringTask()); - String result = future.get(); - assertSame(TEST_STRING, result); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); + assertSame(TEST_STRING, future.get()); + assertTrue(future.isDone()); + assertFalse(future.isCancelled()); } } /** * Completed submit(runnable) returns successfully */ - public void testSubmitRunnable() { - try { - ExecutorService e = new ForkJoinPool(1); + public void testSubmitRunnable() throws Throwable { + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { Future future = e.submit(new NoOpRunnable()); - future.get(); + assertNull(future.get()); assertTrue(future.isDone()); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); + assertFalse(future.isCancelled()); } } /** * Completed submit(runnable, result) returns result */ - public void testSubmitRunnable2() { - try { - ExecutorService e = new ForkJoinPool(1); + public void testSubmitRunnable2() throws Throwable { + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { Future future = e.submit(new NoOpRunnable(), TEST_STRING); - String result = future.get(); - assertSame(TEST_STRING, result); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); + assertSame(TEST_STRING, future.get()); + assertTrue(future.isDone()); + assertFalse(future.isCancelled()); } } - /** - * A submitted privileged action to completion + * A submitted privileged action runs to completion */ - public void testSubmitPrivilegedAction() { - Policy savedPolicy = null; - try { - savedPolicy = Policy.getPolicy(); - AdjustablePolicy policy = new AdjustablePolicy(); - policy.addPermission(new RuntimePermission("getContextClassLoader")); - policy.addPermission(new RuntimePermission("setContextClassLoader")); - Policy.setPolicy(policy); - } catch (AccessControlException ok) { - return; - } - try { + public void testSubmitPrivilegedAction() throws Exception { + final Callable callable = Executors.callable(new PrivilegedAction() { + public Object run() { return TEST_STRING; }}); + Runnable r = new CheckedRunnable() { + public void realRun() throws Exception { ExecutorService e = new ForkJoinPool(1); - Future future = e.submit(Executors.callable(new PrivilegedAction() { - public Object run() { - return TEST_STRING; - }})); - - Object result = future.get(); - assertSame(TEST_STRING, result); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); - } - finally { - try { - Policy.setPolicy(savedPolicy); - } catch (AccessControlException ok) { - return; + try (PoolCleaner cleaner = cleaner(e)) { + Future future = e.submit(callable); + assertSame(TEST_STRING, future.get()); } - } + }}; + + runWithPermissions(r, new RuntimePermission("modifyThread")); } /** - * A submitted a privileged exception action runs to completion + * A submitted privileged exception action runs to completion */ - public void testSubmitPrivilegedExceptionAction() { - Policy savedPolicy = null; - try { - savedPolicy = Policy.getPolicy(); - AdjustablePolicy policy = new AdjustablePolicy(); - policy.addPermission(new RuntimePermission("getContextClassLoader")); - policy.addPermission(new RuntimePermission("setContextClassLoader")); - Policy.setPolicy(policy); - } catch (AccessControlException ok) { - return; - } - - try { + public void testSubmitPrivilegedExceptionAction() throws Exception { + final Callable callable = + Executors.callable(new PrivilegedExceptionAction() { + public Object run() { return TEST_STRING; }}); + Runnable r = new CheckedRunnable() { + public void realRun() throws Exception { ExecutorService e = new ForkJoinPool(1); - Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { - public Object run() { - return TEST_STRING; - }})); + try (PoolCleaner cleaner = cleaner(e)) { + Future future = e.submit(callable); + assertSame(TEST_STRING, future.get()); + } + }}; - Object result = future.get(); - assertSame(TEST_STRING, result); - } - catch (ExecutionException ex) { - unexpectedException(); - } - catch (InterruptedException ex) { - unexpectedException(); - } - finally { - Policy.setPolicy(savedPolicy); - } + runWithPermissions(r, new RuntimePermission("modifyThread")); } /** * A submitted failed privileged exception action reports exception */ - public void testSubmitFailedPrivilegedExceptionAction() { - Policy savedPolicy = null; - try { - savedPolicy = Policy.getPolicy(); - AdjustablePolicy policy = new AdjustablePolicy(); - policy.addPermission(new RuntimePermission("getContextClassLoader")); - policy.addPermission(new RuntimePermission("setContextClassLoader")); - Policy.setPolicy(policy); - } catch (AccessControlException ok) { - return; - } - - - try { + public void testSubmitFailedPrivilegedExceptionAction() throws Exception { + final Callable callable = + Executors.callable(new PrivilegedExceptionAction() { + public Object run() { throw new IndexOutOfBoundsException(); }}); + Runnable r = new CheckedRunnable() { + public void realRun() throws Exception { ExecutorService e = new ForkJoinPool(1); - Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { - public Object run() throws Exception { - throw new IndexOutOfBoundsException(); - }})); + try (PoolCleaner cleaner = cleaner(e)) { + Future future = e.submit(callable); + try { + future.get(); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof IndexOutOfBoundsException); + } + } + }}; - Object result = future.get(); - shouldThrow(); - } - catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (InterruptedException ex) { - unexpectedException(); - } - finally { - Policy.setPolicy(savedPolicy); - } + runWithPermissions(r, new RuntimePermission("modifyThread")); } /** - * execute(null runnable) throws NPE + * execute(null runnable) throws NullPointerException */ public void testExecuteNullRunnable() { - try { - ExecutorService e = new ForkJoinPool(1); - TrackedShortRunnable task = null; - Future future = e.submit(task); - shouldThrow(); - } - catch (NullPointerException success) { - } - catch (Exception ex) { - unexpectedException(); + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { + try { + Future future = e.submit((Runnable) null); + shouldThrow(); + } catch (NullPointerException success) {} } } - /** - * submit(null callable) throws NPE + * submit(null callable) throws NullPointerException */ public void testSubmitNullCallable() { - try { - ExecutorService e = new ForkJoinPool(1); - StringTask t = null; - Future future = e.submit(t); - shouldThrow(); - } - catch (NullPointerException success) { - } - catch (Exception ex) { - unexpectedException(); + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { + try { + Future future = e.submit((Callable) null); + shouldThrow(); + } catch (NullPointerException success) {} } } - /** - * Blocking on submit(callable) throws InterruptedException if - * caller interrupted. - */ - public void testInterruptedSubmit() { - final ForkJoinPool p = new ForkJoinPool(1); - Thread t = new Thread(new Runnable() { - public void run() { - try { - p.submit(new Callable() { - public Object call() { - try { - Thread.sleep(MEDIUM_DELAY_MS); - shouldThrow(); - } catch (InterruptedException e) { - } - return null; - } - }).get(); - } catch (InterruptedException success) { - } catch (Exception e) { - unexpectedException(); - } - - } - }); - try { + * submit(callable).get() throws InterruptedException if interrupted + */ + public void testInterruptedSubmit() throws InterruptedException { + final CountDownLatch submitted = new CountDownLatch(1); + final CountDownLatch quittingTime = new CountDownLatch(1); + final ExecutorService p = new ForkJoinPool(1); + final Callable awaiter = new CheckedCallable() { + public Void realCall() throws InterruptedException { + assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS)); + return null; + }}; + try { + Thread t = new Thread(new CheckedInterruptedRunnable() { + public void realRun() throws Exception { + Future future = p.submit(awaiter); + submitted.countDown(); + future.get(); + }}); t.start(); - Thread.sleep(SHORT_DELAY_MS); + assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS)); t.interrupt(); - } catch (Exception e) { - unexpectedException(); + t.join(); + } finally { + quittingTime.countDown(); + joinPool(p); } - joinPool(p); } /** * get of submit(callable) throws ExecutionException if callable * throws exception */ - public void testSubmitEE() { + public void testSubmitEE() throws Throwable { ForkJoinPool p = new ForkJoinPool(1); - - try { - Callable c = new Callable() { - public Object call() { - int i = 5/0; - return Boolean.TRUE; - } - }; - - for (int i = 0; i < 5; i++) { - p.submit(c).get(); + try (PoolCleaner cleaner = cleaner(p)) { + try { + p.submit(new Callable() { + public Object call() { throw new ArithmeticException(); }}) + .get(); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof ArithmeticException); } + } + } - shouldThrow(); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception e) { - unexpectedException(); + /** + * invokeAny(null) throws NullPointerException + */ + public void testInvokeAny1() throws Throwable { + ExecutorService e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAny(null); + shouldThrow(); + } catch (NullPointerException success) {} } - joinPool(p); } /** - * invokeAny(null) throws NPE + * invokeAny(empty collection) throws IllegalArgumentException */ - public void testInvokeAny1() { + public void testInvokeAny2() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAny(null); - } catch (NullPointerException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAny(new ArrayList>()); + shouldThrow(); + } catch (IllegalArgumentException success) {} } } /** - * invokeAny(empty collection) throws IAE + * invokeAny(c) throws NullPointerException if c has a single null element */ - public void testInvokeAny2() { + public void testInvokeAny3() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAny(new ArrayList>()); - } catch (IllegalArgumentException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); + l.add(null); + try { + e.invokeAny(l); + shouldThrow(); + } catch (NullPointerException success) {} } } /** - * invokeAny(c) throws NPE if c has null elements + * invokeAny(c) throws NullPointerException if c has null elements */ - public void testInvokeAny3() { + public void testInvokeAny4() throws Throwable { + CountDownLatch latch = new CountDownLatch(1); ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); - l.add(new StringTask()); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); + l.add(latchAwaitingStringTask(latch)); l.add(null); - e.invokeAny(l); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAny(l); + shouldThrow(); + } catch (NullPointerException success) {} + latch.countDown(); } } /** * invokeAny(c) throws ExecutionException if no task in c completes */ - public void testInvokeAny4() { + public void testInvokeAny5() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new NPETask()); - e.invokeAny(l); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAny(l); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof NullPointerException); + } } } /** * invokeAny(c) returns result of some task in c if at least one completes */ - public void testInvokeAny5() { + public void testInvokeAny6() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(new StringTask()); String result = e.invokeAny(l); assertSame(TEST_STRING, result); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); } } /** - * invokeAll(null) throws NPE + * invokeAll(null) throws NullPointerException */ - public void testInvokeAll1() { + public void testInvokeAll1() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAll(null); - } catch (NullPointerException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAll(null); + shouldThrow(); + } catch (NullPointerException success) {} } } /** * invokeAll(empty collection) returns empty collection */ - public void testInvokeAll2() { + public void testInvokeAll2() throws InterruptedException { ExecutorService e = new ForkJoinPool(1); - try { - List> r = e.invokeAll(new ArrayList>()); + try (PoolCleaner cleaner = cleaner(e)) { + List> r + = e.invokeAll(new ArrayList>()); assertTrue(r.isEmpty()); - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); } } /** - * invokeAll(c) throws NPE if c has null elements + * invokeAll(c) throws NullPointerException if c has null elements */ - public void testInvokeAll3() { + public void testInvokeAll3() throws InterruptedException { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(null); - e.invokeAll(l); - } catch (NullPointerException success) { - } catch (Exception ex) { - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAll(l); + shouldThrow(); + } catch (NullPointerException success) {} } } /** - * get of returned element of invokeAll(c) throws exception on failed task + * get of returned element of invokeAll(c) throws + * ExecutionException on failed task */ - public void testInvokeAll4() { + public void testInvokeAll4() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new NPETask()); - List> result = e.invokeAll(l); - assertEquals(1, result.size()); - for (Iterator> it = result.iterator(); it.hasNext();) - it.next().get(); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + List> futures = e.invokeAll(l); + assertEquals(1, futures.size()); + try { + futures.get(0).get(); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof NullPointerException); + } } } /** * invokeAll(c) returns results of all completed tasks in c */ - public void testInvokeAll5() { + public void testInvokeAll5() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(new StringTask()); - List> result = e.invokeAll(l); - assertEquals(2, result.size()); - for (Iterator> it = result.iterator(); it.hasNext();) - assertSame(TEST_STRING, it.next().get()); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + List> futures = e.invokeAll(l); + assertEquals(2, futures.size()); + for (Future future : futures) + assertSame(TEST_STRING, future.get()); } } - /** - * timed invokeAny(null) throws NPE + * timed invokeAny(null) throws NullPointerException */ - public void testTimedInvokeAny1() { + public void testTimedInvokeAny1() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (NullPointerException success) {} } } /** - * timed invokeAny(null time unit) throws NPE + * timed invokeAny(null time unit) throws NullPointerException */ - public void testTimedInvokeAnyNullTimeUnit() { + public void testTimedInvokeAnyNullTimeUnit() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); - e.invokeAny(l, MEDIUM_DELAY_MS, null); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAny(l, MEDIUM_DELAY_MS, null); + shouldThrow(); + } catch (NullPointerException success) {} } } /** - * timed invokeAny(empty collection) throws IAE + * timed invokeAny(empty collection) throws IllegalArgumentException */ - public void testTimedInvokeAny2() { + public void testTimedInvokeAny2() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAny(new ArrayList>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (IllegalArgumentException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAny(new ArrayList>(), + MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (IllegalArgumentException success) {} } } /** - * timed invokeAny(c) throws NPE if c has null elements + * timed invokeAny(c) throws NullPointerException if c has null elements */ - public void testTimedInvokeAny3() { + public void testTimedInvokeAny3() throws Throwable { + CountDownLatch latch = new CountDownLatch(1); ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); - l.add(new StringTask()); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); + l.add(latchAwaitingStringTask(latch)); l.add(null); - e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (NullPointerException success) {} + latch.countDown(); } } /** * timed invokeAny(c) throws ExecutionException if no task completes */ - public void testTimedInvokeAny4() { + public void testTimedInvokeAny4() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new NPETask()); - e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof NullPointerException); + } } } /** * timed invokeAny(c) returns result of some task in c */ - public void testTimedInvokeAny5() { + public void testTimedInvokeAny5() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(new StringTask()); - String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); + String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); assertSame(TEST_STRING, result); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); } } /** - * timed invokeAll(null) throws NPE + * timed invokeAll(null) throws NullPointerException */ - public void testTimedInvokeAll1() { + public void testTimedInvokeAll1() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try (PoolCleaner cleaner = cleaner(e)) { + try { + e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (NullPointerException success) {} } } /** - * timed invokeAll(null time unit) throws NPE + * timed invokeAll(null time unit) throws NullPointerException */ - public void testTimedInvokeAllNullTimeUnit() { + public void testTimedInvokeAllNullTimeUnit() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); - e.invokeAll(l, MEDIUM_DELAY_MS, null); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAll(l, MEDIUM_DELAY_MS, null); + shouldThrow(); + } catch (NullPointerException success) {} } } /** * timed invokeAll(empty collection) returns empty collection */ - public void testTimedInvokeAll2() { + public void testTimedInvokeAll2() throws InterruptedException { ExecutorService e = new ForkJoinPool(1); - try { - List> r = e.invokeAll(new ArrayList>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); + try (PoolCleaner cleaner = cleaner(e)) { + List> r + = e.invokeAll(new ArrayList>(), + MEDIUM_DELAY_MS, MILLISECONDS); assertTrue(r.isEmpty()); - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); } } /** - * timed invokeAll(c) throws NPE if c has null elements + * timed invokeAll(c) throws NullPointerException if c has null elements */ - public void testTimedInvokeAll3() { + public void testTimedInvokeAll3() throws InterruptedException { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(null); - e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - } catch (NullPointerException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + try { + e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); + shouldThrow(); + } catch (NullPointerException success) {} } } /** * get of returned element of invokeAll(c) throws exception on failed task */ - public void testTimedInvokeAll4() { + public void testTimedInvokeAll4() throws Throwable { ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new NPETask()); - List> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - assertEquals(1, result.size()); - for (Iterator> it = result.iterator(); it.hasNext();) - it.next().get(); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + List> futures + = e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); + assertEquals(1, futures.size()); + try { + futures.get(0).get(); + shouldThrow(); + } catch (ExecutionException success) { + assertTrue(success.getCause() instanceof NullPointerException); + } } } /** * timed invokeAll(c) returns results of all completed tasks in c */ - public void testTimedInvokeAll5() { - ExecutorService e = new ForkJoinPool(1); - try { - ArrayList> l = new ArrayList>(); + public void testTimedInvokeAll5() throws Throwable { + ForkJoinPool e = new ForkJoinPool(1); + try (PoolCleaner cleaner = cleaner(e)) { + List> l = new ArrayList>(); l.add(new StringTask()); l.add(new StringTask()); - List> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); - assertEquals(2, result.size()); - for (Iterator> it = result.iterator(); it.hasNext();) - assertSame(TEST_STRING, it.next().get()); - } catch (ExecutionException success) { - } catch (CancellationException success) { - } catch (Exception ex) { - ex.printStackTrace(); - unexpectedException(); - } finally { - joinPool(e); + List> futures + = e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); + assertEquals(2, futures.size()); + for (Future future : futures) + assertSame(TEST_STRING, future.get()); } }