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root/jsr166/jsr166/src/test/tck/CompletableFutureTest.java
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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.167 by jsr166, Sun Jul 17 17:49:23 2016 UTC vs.
Revision 1.171 by jsr166, Wed Aug 24 22:22:39 2016 UTC

# Line 32 | Line 32 | import java.util.concurrent.ForkJoinPool
32   import java.util.concurrent.ForkJoinTask;
33   import java.util.concurrent.RejectedExecutionException;
34   import java.util.concurrent.TimeoutException;
35 – import java.util.concurrent.TimeUnit;
35   import java.util.concurrent.atomic.AtomicInteger;
36   import java.util.concurrent.atomic.AtomicReference;
37   import java.util.function.BiConsumer;
# Line 4243 | Line 4242 | public class CompletableFutureTest exten
4242      }
4243  
4244      /**
4245 <     * Checks for garbage retention with anyOf.
4246 <     * Following used to fail with OOME:
4247 <     * ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck
4245 >     * Reproduction recipe for:
4246 >     * 8160402: Garbage retention with CompletableFuture.anyOf
4247 >     * cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A
4248       */
4249      public void testAnyOfGarbageRetention() throws Throwable {
4250          for (Integer v : new Integer[] { 1, null })
# Line 4276 | Line 4275 | public class CompletableFutureTest exten
4275              assertTrue(CompletableFuture.allOf(fs).cancel(false));
4276      }
4277  
4278 +    /**
4279 +     * Checks for garbage retention when a dependent future is
4280 +     * cancelled and garbage-collected.
4281 +     * 8161600: Garbage retention when source CompletableFutures are never completed
4282 +     *
4283 +     * As of 2016-07, fails with OOME:
4284 +     * ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4285 +     */
4286 +    public void testCancelledGarbageRetention() throws Throwable {
4287 +        final int n = expensiveTests ? 100_000 : 10;
4288 +        CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4289 +        for (int i = 0; i < n; i++)
4290 +            assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4291 +    }
4292 +
4293   //     static <U> U join(CompletionStage<U> stage) {
4294   //         CompletableFuture<U> f = new CompletableFuture<>();
4295   //         stage.whenComplete((v, ex) -> {

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