--- jsr166/src/test/tck/ForkJoinTaskTest.java 2015/10/04 16:14:48 1.42 +++ jsr166/src/test/tck/ForkJoinTaskTest.java 2016/08/10 01:28:14 1.50 @@ -7,7 +7,10 @@ import static java.util.concurrent.TimeUnit.MILLISECONDS; import static java.util.concurrent.TimeUnit.SECONDS; +import java.util.Arrays; +import java.util.Collections; import java.util.HashSet; +import java.util.List; import java.util.concurrent.CancellationException; import java.util.concurrent.ExecutionException; import java.util.concurrent.ForkJoinPool; @@ -96,17 +99,17 @@ public class ForkJoinTaskTest extends JS { Thread.currentThread().interrupt(); - long t0 = System.nanoTime(); + long startTime = System.nanoTime(); assertSame(expected, a.join()); - assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); + assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); Thread.interrupted(); } { Thread.currentThread().interrupt(); - long t0 = System.nanoTime(); + long startTime = System.nanoTime(); a.quietlyJoin(); // should be no-op - assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); + assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); Thread.interrupted(); } @@ -139,9 +142,9 @@ public class ForkJoinTaskTest extends JS Thread.interrupted(); { - long t0 = System.nanoTime(); + long startTime = System.nanoTime(); a.quietlyJoin(); // should be no-op - assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); + assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); } try { @@ -177,9 +180,9 @@ public class ForkJoinTaskTest extends JS Thread.interrupted(); { - long t0 = System.nanoTime(); + long startTime = System.nanoTime(); a.quietlyJoin(); // should be no-op - assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); + assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); } try { @@ -216,9 +219,9 @@ public class ForkJoinTaskTest extends JS AtomicIntegerFieldUpdater.newUpdater(BinaryAsyncAction.class, "controlState"); - private BinaryAsyncAction parent; + private volatile BinaryAsyncAction parent; - private BinaryAsyncAction sibling; + private volatile BinaryAsyncAction sibling; protected BinaryAsyncAction() { } @@ -253,6 +256,14 @@ public class ForkJoinTaskTest extends JS super.completeExceptionally(ex); } + public boolean cancel(boolean mayInterruptIfRunning) { + if (super.cancel(mayInterruptIfRunning)) { + completeExceptionally(new FJException()); + return true; + } + return false; + } + public final void complete() { BinaryAsyncAction a = this; for (;;) { @@ -274,13 +285,12 @@ public class ForkJoinTaskTest extends JS } public final void completeExceptionally(Throwable ex) { - BinaryAsyncAction a = this; - while (!a.isCompletedAbnormally()) { + for (BinaryAsyncAction a = this;;) { a.completeThisExceptionally(ex); BinaryAsyncAction s = a.sibling; - if (s != null) - s.cancel(false); - if (!a.onException() || (a = a.parent) == null) + if (s != null && !s.isDone()) + s.completeExceptionally(ex); + if ((a = a.parent) == null) break; } } @@ -330,15 +340,12 @@ public class ForkJoinTaskTest extends JS public final boolean exec() { AsyncFib f = this; int n = f.number; - if (n > 1) { - while (n > 1) { - AsyncFib p = f; - AsyncFib r = new AsyncFib(n - 2); - f = new AsyncFib(--n); - p.linkSubtasks(r, f); - r.fork(); - } - f.number = n; + while (n > 1) { + AsyncFib p = f; + AsyncFib r = new AsyncFib(n - 2); + f = new AsyncFib(--n); + p.linkSubtasks(r, f); + r.fork(); } f.complete(); return false; @@ -358,15 +365,12 @@ public class ForkJoinTaskTest extends JS public final boolean exec() { FailingAsyncFib f = this; int n = f.number; - if (n > 1) { - while (n > 1) { - FailingAsyncFib p = f; - FailingAsyncFib r = new FailingAsyncFib(n - 2); - f = new FailingAsyncFib(--n); - p.linkSubtasks(r, f); - r.fork(); - } - f.number = n; + while (n > 1) { + FailingAsyncFib p = f; + FailingAsyncFib r = new FailingAsyncFib(n - 2); + f = new FailingAsyncFib(--n); + p.linkSubtasks(r, f); + r.fork(); } f.complete(); return false; @@ -772,6 +776,27 @@ public class ForkJoinTaskTest extends JS } /** + * completeExceptionally(null) surprisingly has the same effect as + * completeExceptionally(new RuntimeException()) + */ + public void testCompleteExceptionally_null() { + RecursiveAction a = new CheckedRecursiveAction() { + protected void realCompute() { + AsyncFib f = new AsyncFib(8); + f.completeExceptionally(null); + try { + f.invoke(); + shouldThrow(); + } catch (RuntimeException success) { + assertSame(success.getClass(), RuntimeException.class); + assertNull(success.getCause()); + checkCompletedAbnormally(f, success); + } + }}; + testInvokeOnPool(mainPool(), a); + } + + /** * invokeAll(t1, t2) invokes all task arguments */ public void testInvokeAll2() { @@ -871,8 +896,10 @@ public class ForkJoinTaskTest extends JS protected void realCompute() { AsyncFib f = new AsyncFib(8); FailingAsyncFib g = new FailingAsyncFib(9); + ForkJoinTask[] tasks = { f, g }; + shuffle(tasks); try { - invokeAll(f, g); + invokeAll(tasks); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(g, success); @@ -907,8 +934,10 @@ public class ForkJoinTaskTest extends JS AsyncFib f = new AsyncFib(8); FailingAsyncFib g = new FailingAsyncFib(9); AsyncFib h = new AsyncFib(7); + ForkJoinTask[] tasks = { f, g, h }; + shuffle(tasks); try { - invokeAll(f, g, h); + invokeAll(tasks); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(g, success); @@ -926,12 +955,10 @@ public class ForkJoinTaskTest extends JS FailingAsyncFib f = new FailingAsyncFib(8); AsyncFib g = new AsyncFib(9); AsyncFib h = new AsyncFib(7); - HashSet set = new HashSet(); - set.add(f); - set.add(g); - set.add(h); + ForkJoinTask[] tasks = { f, g, h }; + shuffle(tasks); try { - invokeAll(set); + invokeAll(Arrays.asList(tasks)); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(f, success); @@ -1538,8 +1565,10 @@ public class ForkJoinTaskTest extends JS protected void realCompute() { AsyncFib f = new AsyncFib(8); FailingAsyncFib g = new FailingAsyncFib(9); + ForkJoinTask[] tasks = { f, g }; + shuffle(tasks); try { - invokeAll(f, g); + invokeAll(tasks); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(g, success); @@ -1574,8 +1603,10 @@ public class ForkJoinTaskTest extends JS AsyncFib f = new AsyncFib(8); FailingAsyncFib g = new FailingAsyncFib(9); AsyncFib h = new AsyncFib(7); + ForkJoinTask[] tasks = { f, g, h }; + shuffle(tasks); try { - invokeAll(f, g, h); + invokeAll(tasks); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(g, success); @@ -1593,12 +1624,10 @@ public class ForkJoinTaskTest extends JS FailingAsyncFib f = new FailingAsyncFib(8); AsyncFib g = new AsyncFib(9); AsyncFib h = new AsyncFib(7); - HashSet set = new HashSet(); - set.add(f); - set.add(g); - set.add(h); + ForkJoinTask[] tasks = { f, g, h }; + shuffle(tasks); try { - invokeAll(set); + invokeAll(Arrays.asList(tasks)); shouldThrow(); } catch (FJException success) { checkCompletedAbnormally(f, success);