Пример #1
0
  /*
   *	@param t Result type
   * @see java.util.function.Consumer#accept(java.lang.Object)
   */
  @Override
  public void accept(FastFuture<T> t) {

    active.add(t);

    if (active.size() > maxActive.getMaxActive()) {

      while (active.size() > maxActive.getReduceTo()) {

        List<FastFuture> toRemove =
            active
                .stream()
                .filter(cf -> cf.isDone())
                .peek(this::handleExceptions)
                .collect(Collectors.toList());

        active.removeAll(toRemove);
        if (active.size() > maxActive.getReduceTo()) {
          CompletableFuture promise = new CompletableFuture();
          FastFuture.xOf(
              active.size() - maxActive.getReduceTo(),
              () -> promise.complete(true),
              active.toArray(new FastFuture[0]));

          promise.join();
        }
      }
    }
  }
Пример #2
0
 static void checkCompletedNormally(CompletableFuture<?> cf, Object[] values) {
   try {
     equalAnyOf(cf.join(), values);
   } catch (Throwable x) {
     unexpected(x);
   }
   try {
     equalAnyOf(cf.getNow(null), values);
   } catch (Throwable x) {
     unexpected(x);
   }
   try {
     equalAnyOf(cf.get(), values);
   } catch (Throwable x) {
     unexpected(x);
   }
   try {
     equalAnyOf(cf.get(0L, SECONDS), values);
   } catch (Throwable x) {
     unexpected(x);
   }
   check(cf.isDone(), "Expected isDone to be true, got:" + cf);
   check(!cf.isCancelled(), "Expected isCancelled to be false");
   check(!cf.cancel(true), "Expected cancel to return false");
   check(cf.toString().contains("[Completed normally]"));
   check(cf.complete(null) == false, "Expected complete() to fail");
   check(
       cf.completeExceptionally(new Throwable()) == false,
       "Expected completeExceptionally() to fail");
 }
Пример #3
0
 @Test
 @SuppressWarnings("unchecked")
 public void modificationDuringTransactionCausesAbort() throws Exception {
   Map<String, String> testMap =
       getRuntime().getObjectsView().open(CorfuRuntime.getStreamID("A"), SMRMap.class);
   assertThat(testMap.put("a", "z"));
   getRuntime().getObjectsView().TXBegin();
   assertThat(testMap.put("a", "a")).isEqualTo("z");
   assertThat(testMap.put("a", "b")).isEqualTo("a");
   assertThat(testMap.get("a")).isEqualTo("b");
   CompletableFuture cf =
       CompletableFuture.runAsync(
           () -> {
             Map<String, String> testMap2 =
                 getRuntime()
                     .getObjectsView()
                     .open(
                         UUID.nameUUIDFromBytes("A".getBytes()),
                         SMRMap.class,
                         null,
                         EnumSet.of(ObjectOpenOptions.NO_CACHE),
                         SerializerType.JSON);
             testMap2.put("a", "f");
           });
   cf.join();
   assertThatThrownBy(() -> getRuntime().getObjectsView().TXEnd())
       .isInstanceOf(TransactionAbortedException.class);
 }
Пример #4
0
  @Test
  public void testLongParam() throws IllegalAccessException, InstantiationException {
    PrimitiveUser2 a = new PrimitiveUser2();

    CompletableFuture<String> blocker = new CompletableFuture<>();
    final CompletableFuture<Object> res = a.longTest(blocker, 10000000000L);
    blocker.complete("x");
    assertEquals(":10000000000:x", res.join());
  }
Пример #5
0
 @SuppressWarnings("unchecked")
 static <T> void checkCompletedExceptionally(CompletableFuture<T> cf, boolean cancelled)
     throws Exception {
   try {
     cf.join();
     fail("Excepted exception to be thrown");
   } catch (CompletionException x) {
     if (cancelled) fail();
     else pass();
   } catch (CancellationException x) {
     if (cancelled) pass();
     else fail();
   }
   try {
     cf.getNow(null);
     fail("Excepted exception to be thrown");
   } catch (CompletionException x) {
     if (cancelled) fail();
     else pass();
   } catch (CancellationException x) {
     if (cancelled) pass();
     else fail();
   }
   try {
     cf.get();
     fail("Excepted exception to be thrown");
   } catch (CancellationException x) {
     if (cancelled) pass();
     else fail();
   } catch (ExecutionException x) {
     if (cancelled) check(x.getCause() instanceof CancellationException);
     else pass();
   }
   try {
     cf.get(0L, SECONDS);
     fail("Excepted exception to be thrown");
   } catch (CancellationException x) {
     if (cancelled) pass();
     else fail();
   } catch (ExecutionException x) {
     if (cancelled) check(x.getCause() instanceof CancellationException);
     else pass();
   }
   check(cf.isDone(), "Expected isDone to be true, got:" + cf);
   check(
       cf.isCancelled() == cancelled,
       "Expected isCancelled: " + cancelled + ", got:" + cf.isCancelled());
   check(
       cf.cancel(true) == cancelled, "Expected cancel: " + cancelled + ", got:" + cf.cancel(true));
   check(cf.toString().contains("[Completed exceptionally]")); // ## TODO: 'E'xceptionally
   check(cf.complete((T) new Object()) == false, "Expected complete() to fail");
   check(
       cf.completeExceptionally(new Throwable()) == false,
       "Expected completeExceptionally() to fail, already completed");
 }
Пример #6
0
 /** consume returns a CompletableFuture that is done when publisher completes */
 public void testConsume() {
   AtomicInteger sum = new AtomicInteger();
   SubmissionPublisher<Integer> p = basicPublisher();
   CompletableFuture<Void> f =
       p.consume(
           (Integer x) -> {
             sum.getAndAdd(x.intValue());
           });
   int n = 20;
   for (int i = 1; i <= n; ++i) p.submit(i);
   p.close();
   f.join();
   assertEquals((n * (n + 1)) / 2, sum.get());
 }
Пример #7
0
  @Test
  public void testAllPrimitivesAndStack() throws IllegalAccessException, InstantiationException {
    PrimitiveUser4 a = new PrimitiveUser4();

    CompletableFuture<String> blocker = new CompletableFuture<>();

    Random r = new Random();
    int i1 = r.nextInt();
    short s1 = (short) r.nextInt();
    byte b1 = (byte) r.nextInt();
    double d1 = r.nextDouble();
    char c1 = (char) r.nextInt();
    boolean z1 = r.nextBoolean();
    long g1 = r.nextLong();
    Object o1 = new Object();
    float f1 = r.nextFloat();

    final CompletableFuture<Object> res = a.melange(i1, s1, b1, d1, c1, z1, g1, o1, f1, blocker, 0);
    assertFalse(res.isDone());
    blocker.complete("x");
    assertEquals(":", res.join());
    a.assertFields(i1, s1, b1, d1, c1, z1, g1, o1, f1);
  }
Пример #8
0
  private static void test(ExecutorService executor) throws Throwable {

    Thread.currentThread().setName("mainThread");

    // ----------------------------------------------------------------
    // supplyAsync tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<String> cf = supplyAsync(() -> "a test string");
      checkCompletedNormally(cf, cf.join());
      cf = supplyAsync(() -> "a test string", commonPool());
      checkCompletedNormally(cf, cf.join());
      cf = supplyAsync(() -> "a test string", executor);
      checkCompletedNormally(cf, cf.join());
      cf =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      checkCompletedExceptionally(cf);
      cf =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              },
              commonPool());
      checkCompletedExceptionally(cf);
      cf =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              },
              executor);
      checkCompletedExceptionally(cf);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // runAsync tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf = runAsync(() -> {});
      checkCompletedNormally(cf, cf.join());
      cf = runAsync(() -> {}, commonPool());
      checkCompletedNormally(cf, cf.join());
      cf = runAsync(() -> {}, executor);
      checkCompletedNormally(cf, cf.join());
      cf =
          runAsync(
              () -> {
                throw new RuntimeException();
              });
      checkCompletedExceptionally(cf);
      cf =
          runAsync(
              () -> {
                throw new RuntimeException();
              },
              commonPool());
      checkCompletedExceptionally(cf);
      cf =
          runAsync(
              () -> {
                throw new RuntimeException();
              },
              executor);
      checkCompletedExceptionally(cf);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // explicit completion
    // ----------------------------------------------------------------
    try {
      final Phaser phaser = new Phaser(1);
      final int phase = phaser.getPhase();
      CompletableFuture<Integer> cf;
      cf =
          supplyAsync(
              () -> {
                phaser.awaitAdvance(phase);
                return 1;
              });
      cf.complete(2);
      phaser.arrive();
      checkCompletedNormally(cf, 2);

      cf =
          supplyAsync(
              () -> {
                phaser.awaitAdvance(phase + 1);
                return 1;
              });
      cf.completeExceptionally(new Throwable());
      phaser.arrive();
      checkCompletedExceptionally(cf);

      cf =
          supplyAsync(
              () -> {
                phaser.awaitAdvance(phase + 2);
                return 1;
              });
      cf.cancel(true);
      phaser.arrive();
      checkCompletedExceptionally(cf, true);

      cf =
          supplyAsync(
              () -> {
                phaser.awaitAdvance(phase + 3);
                return 1;
              });
      check(cf.getNow(2) == 2);
      phaser.arrive();
      checkCompletedNormally(cf, 1);
      check(cf.getNow(2) == 1);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenApplyXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf2;
      CompletableFuture<String> cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenApply(
              (x) -> {
                if (x.equals("a test string")) return 1;
                else return 0;
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, 1);

      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenApplyAsync(
              (x) -> {
                if (x.equals("a test string")) return 1;
                else return 0;
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, 1);

      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenApplyAsync(
              (x) -> {
                if (x.equals("a test string")) return 1;
                else return 0;
              },
              executor);
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, 1);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenApply(
              (x) -> {
                return 0;
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenApplyAsync(
              (x) -> {
                return 0;
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenApplyAsync(
              (x) -> {
                return 0;
              },
              executor);
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenAcceptXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf2;
      int before = atomicInt.get();
      CompletableFuture<String> cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenAccept(
              (x) -> {
                if (x.equals("a test string")) {
                  atomicInt.incrementAndGet();
                  return;
                }
                throw new RuntimeException();
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenAcceptAsync(
              (x) -> {
                if (x.equals("a test string")) {
                  atomicInt.incrementAndGet();
                  return;
                }
                throw new RuntimeException();
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenAcceptAsync(
              (x) -> {
                if (x.equals("a test string")) {
                  atomicInt.incrementAndGet();
                  return;
                }
                throw new RuntimeException();
              },
              executor);
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenAccept(
              (x) -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenAcceptAsync(
              (x) -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenAcceptAsync(
              (x) -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenRunXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf2;
      int before = atomicInt.get();
      CompletableFuture<String> cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenRun(
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenRunAsync(
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> "a test string");
      cf2 =
          cf1.thenRunAsync(
              () -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedNormally(cf1, "a test string");
      checkCompletedNormally(cf2, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenRun(
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenRunAsync(
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenRunAsync(
              () -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenCombineXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf3;
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      CompletableFuture<Integer> cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenCombine(
              cf2,
              (x, y) -> {
                return x + y;
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, 2);

      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenCombineAsync(
              cf2,
              (x, y) -> {
                return x + y;
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, 2);

      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenCombineAsync(
              cf2,
              (x, y) -> {
                return x + y;
              },
              executor);
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, 2);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenCombine(
              cf2,
              (x, y) -> {
                return 0;
              });
      checkCompletedExceptionally(cf1);
      checkCompletedNormally(cf2, 1);
      checkCompletedExceptionally(cf3);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.thenCombineAsync(
              cf2,
              (x, y) -> {
                return 0;
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedExceptionally(cf2);
      checkCompletedExceptionally(cf3);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.thenCombineAsync(
              cf2,
              (x, y) -> {
                return 0;
              },
              executor);
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      checkCompletedExceptionally(cf3);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenAcceptBothXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf3;
      int before = atomicInt.get();
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      CompletableFuture<Integer> cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenAcceptBoth(
              cf2,
              (x, y) -> {
                check(x + y == 2);
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenAcceptBothAsync(
              cf2,
              (x, y) -> {
                check(x + y == 2);
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenAcceptBothAsync(
              cf2,
              (x, y) -> {
                check(x + y == 2);
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.thenAcceptBoth(
              cf2,
              (x, y) -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf1);
      checkCompletedNormally(cf2, 1);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.thenAcceptBothAsync(
              cf2,
              (x, y) -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedExceptionally(cf2);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.thenAcceptBothAsync(
              cf2,
              (x, y) -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // runAfterBothXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf3;
      int before = atomicInt.get();
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      CompletableFuture<Integer> cf2 = supplyAsync(() -> 1);
      cf3 =
          cf1.runAfterBoth(
              cf2,
              () -> {
                check(cf1.isDone());
                check(cf2.isDone());
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      CompletableFuture<Integer> cfa = supplyAsync(() -> 1);
      CompletableFuture<Integer> cfb = supplyAsync(() -> 1);
      cf3 =
          cfa.runAfterBothAsync(
              cfb,
              () -> {
                check(cfa.isDone());
                check(cfb.isDone());
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cfa, 1);
      checkCompletedNormally(cfb, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      CompletableFuture<Integer> cfx = supplyAsync(() -> 1);
      CompletableFuture<Integer> cfy = supplyAsync(() -> 1);
      cf3 =
          cfy.runAfterBothAsync(
              cfx,
              () -> {
                check(cfx.isDone());
                check(cfy.isDone());
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedNormally(cfx, 1);
      checkCompletedNormally(cfy, 1);
      checkCompletedNormally(cf3, null);
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      CompletableFuture<Integer> cf4 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      CompletableFuture<Integer> cf5 = supplyAsync(() -> 1);
      cf3 =
          cf5.runAfterBothAsync(
              cf4,
              () -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedExceptionally(cf4);
      checkCompletedNormally(cf5, 1);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);

      before = atomicInt.get();
      cf4 = supplyAsync(() -> 1);
      cf5 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf5.runAfterBothAsync(
              cf4,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf4, 1);
      checkCompletedExceptionally(cf5);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);

      before = atomicInt.get();
      cf4 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf5 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf5.runAfterBoth(
              cf4,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedExceptionally(cf4);
      checkCompletedExceptionally(cf5);
      checkCompletedExceptionally(cf3);
      check(atomicInt.get() == before);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // applyToEitherXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf3;
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.applyToEither(
              cf2,
              (x) -> {
                check(x == 1 || x == 2);
                return x;
              });
      checkCompletedNormally(cf3, new Object[] {1, 2});
      check(cf1.isDone() || cf2.isDone());

      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.applyToEitherAsync(
              cf2,
              (x) -> {
                check(x == 1 || x == 2);
                return x;
              });
      checkCompletedNormally(cf3, new Object[] {1, 2});
      check(cf1.isDone() || cf2.isDone());

      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.applyToEitherAsync(
              cf2,
              (x) -> {
                check(x == 1 || x == 2);
                return x;
              },
              executor);
      checkCompletedNormally(cf3, new Object[] {1, 2});
      check(cf1.isDone() || cf2.isDone());

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.applyToEither(
              cf2,
              (x) -> {
                check(x == 2);
                return x;
              });
      try {
        check(cf3.join() == 2);
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.applyToEitherAsync(
              cf2,
              (x) -> {
                check(x == 1);
                return x;
              });
      try {
        check(cf3.join() == 1);
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.applyToEitherAsync(
              cf2,
              (x) -> {
                fail();
                return x;
              });
      checkCompletedExceptionally(cf3);
      check(cf1.isDone() || cf2.isDone());

      final Phaser cf3Done = new Phaser(2);
      cf1 =
          supplyAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
                return 1;
              });
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.applyToEither(
              cf2,
              (x) -> {
                check(x == 2);
                return x;
              });
      checkCompletedNormally(cf3, 2);
      checkCompletedNormally(cf2, 2);
      check(!cf1.isDone());
      cf3Done.arrive();
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf3, 2);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
                return 2;
              });
      cf3 =
          cf1.applyToEitherAsync(
              cf2,
              (x) -> {
                check(x == 1);
                return x;
              });
      checkCompletedNormally(cf3, 1);
      checkCompletedNormally(cf1, 1);
      check(!cf2.isDone());
      cf3Done.arrive();
      checkCompletedNormally(cf2, 2);
      checkCompletedNormally(cf3, 1);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // acceptEitherXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf3;
      int before = atomicInt.get();
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.acceptEither(
              cf2,
              (x) -> {
                check(x == 1 || x == 2);
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.acceptEitherAsync(
              cf2,
              (x) -> {
                check(x == 1 || x == 2);
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = supplyAsync(() -> 1);
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf2.acceptEitherAsync(
              cf1,
              (x) -> {
                check(x == 1 || x == 2);
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf2.acceptEitherAsync(
              cf1,
              (x) -> {
                check(x == 2);
              },
              executor);
      try {
        check(cf3.join() == null);
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf2.acceptEitherAsync(
              cf1,
              (x) -> {
                check(x == 1);
              });
      try {
        check(cf3.join() == null);
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf2.acceptEitherAsync(
              cf1,
              (x) -> {
                fail();
              });
      checkCompletedExceptionally(cf3);
      check(cf1.isDone() || cf2.isDone());

      final Phaser cf3Done = new Phaser(2);
      cf1 =
          supplyAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
                return 1;
              });
      cf2 = supplyAsync(() -> 2);
      cf3 =
          cf1.acceptEither(
              cf2,
              (x) -> {
                check(x == 2);
              });
      checkCompletedNormally(cf3, null);
      checkCompletedNormally(cf2, 2);
      check(!cf1.isDone());
      cf3Done.arrive();
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf3, null);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          supplyAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
                return 2;
              });
      cf3 =
          cf1.acceptEitherAsync(
              cf2,
              (x) -> {
                check(x == 1);
              });
      checkCompletedNormally(cf3, null);
      checkCompletedNormally(cf1, 1);
      check(!cf2.isDone());
      cf3Done.arrive();
      checkCompletedNormally(cf2, 2);
      checkCompletedNormally(cf3, null);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // runAfterEitherXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Void> cf3;
      int before = atomicInt.get();
      CompletableFuture<Void> cf1 = runAsync(() -> {});
      CompletableFuture<Void> cf2 = runAsync(() -> {});
      cf3 =
          cf1.runAfterEither(
              cf2,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = runAsync(() -> {});
      cf2 = runAsync(() -> {});
      cf3 =
          cf1.runAfterEitherAsync(
              cf2,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 = runAsync(() -> {});
      cf2 = runAsync(() -> {});
      cf3 =
          cf2.runAfterEitherAsync(
              cf1,
              () -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedNormally(cf3, null);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == (before + 1));

      before = atomicInt.get();
      cf1 =
          runAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 = runAsync(() -> {});
      cf3 =
          cf2.runAfterEither(
              cf1,
              () -> {
                atomicInt.incrementAndGet();
              });
      try {
        check(cf3.join() == null);
        check(atomicInt.get() == (before + 1));
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      before = atomicInt.get();
      cf1 = runAsync(() -> {});
      cf2 =
          runAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf1.runAfterEitherAsync(
              cf2,
              () -> {
                atomicInt.incrementAndGet();
              });
      try {
        check(cf3.join() == null);
        check(atomicInt.get() == (before + 1));
      } catch (CompletionException x) {
        pass();
      }
      check(cf3.isDone());
      check(cf1.isDone() || cf2.isDone());

      before = atomicInt.get();
      cf1 =
          runAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          runAsync(
              () -> {
                throw new RuntimeException();
              });
      cf3 =
          cf2.runAfterEitherAsync(
              cf1,
              () -> {
                atomicInt.incrementAndGet();
              },
              executor);
      checkCompletedExceptionally(cf3);
      check(cf1.isDone() || cf2.isDone());
      check(atomicInt.get() == before);

      final Phaser cf3Done = new Phaser(2);
      before = atomicInt.get();
      cf1 =
          runAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
              });
      cf2 = runAsync(() -> {});
      cf3 =
          cf1.runAfterEither(
              cf2,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      checkCompletedNormally(cf2, null);
      check(!cf1.isDone());
      check(atomicInt.get() == (before + 1));
      cf3Done.arrive();
      checkCompletedNormally(cf1, null);
      checkCompletedNormally(cf3, null);

      before = atomicInt.get();
      cf1 = runAsync(() -> {});
      cf2 =
          runAsync(
              () -> {
                cf3Done.arriveAndAwaitAdvance();
              });
      cf3 =
          cf1.runAfterEitherAsync(
              cf2,
              () -> {
                atomicInt.incrementAndGet();
              });
      checkCompletedNormally(cf3, null);
      checkCompletedNormally(cf1, null);
      check(!cf2.isDone());
      check(atomicInt.get() == (before + 1));
      cf3Done.arrive();
      checkCompletedNormally(cf2, null);
      checkCompletedNormally(cf3, null);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // thenComposeXXX tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf2;
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      cf2 =
          cf1.thenCompose(
              (x) -> {
                check(x == 1);
                return CompletableFuture.completedFuture(2);
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 2);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          cf1.thenComposeAsync(
              (x) -> {
                check(x == 1);
                return CompletableFuture.completedFuture(2);
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 2);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          cf1.thenComposeAsync(
              (x) -> {
                check(x == 1);
                return CompletableFuture.completedFuture(2);
              },
              executor);
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 2);

      int before = atomicInt.get();
      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenCompose(
              (x) -> {
                atomicInt.incrementAndGet();
                return CompletableFuture.completedFuture(2);
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 =
          supplyAsync(
              () -> {
                throw new RuntimeException();
              });
      cf2 =
          cf1.thenComposeAsync(
              (x) -> {
                atomicInt.incrementAndGet();
                return CompletableFuture.completedFuture(2);
              });
      checkCompletedExceptionally(cf1);
      checkCompletedExceptionally(cf2);
      check(atomicInt.get() == before);

      cf1 = supplyAsync(() -> 1);
      cf2 =
          cf1.thenComposeAsync(
              (x) -> {
                throw new RuntimeException();
              },
              executor);
      checkCompletedNormally(cf1, 1);
      checkCompletedExceptionally(cf2);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // anyOf tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Object> cf3;
      for (int k = 0; k < 10; k++) {
        CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
        CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
        cf3 = CompletableFuture.anyOf(cf1, cf2);
        checkCompletedNormally(cf3, new Object[] {1, 2});
        check(cf1.isDone() || cf2.isDone());
      }
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // allOf tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<?> cf3;
      for (int k = 0; k < 10; k++) {
        CompletableFuture<Integer>[] cfs =
            (CompletableFuture<Integer>[]) Array.newInstance(CompletableFuture.class, 10);
        for (int j = 0; j < 10; j++) {
          final int v = j;
          cfs[j] = supplyAsync(() -> v);
        }
        cf3 = CompletableFuture.allOf(cfs);
        for (int j = 0; j < 10; j++) checkCompletedNormally(cfs[j], j);
        checkCompletedNormally(cf3, null);
      }
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // exceptionally tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf2;
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      cf2 =
          cf1.exceptionally(
              (t) -> {
                fail("function should never be called");
                return 2;
              });
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 1);

      final RuntimeException t = new RuntimeException();
      cf1 =
          supplyAsync(
              () -> {
                throw t;
              });
      cf2 =
          cf1.exceptionally(
              (x) -> {
                check(x.getCause() == t);
                return 2;
              });
      checkCompletedExceptionally(cf1);
      checkCompletedNormally(cf2, 2);
    } catch (Throwable t) {
      unexpected(t);
    }

    // ----------------------------------------------------------------
    // handle tests
    // ----------------------------------------------------------------
    try {
      CompletableFuture<Integer> cf2;
      CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
      cf2 = cf1.handle((x, t) -> x + 1);
      checkCompletedNormally(cf1, 1);
      checkCompletedNormally(cf2, 2);

      final RuntimeException ex = new RuntimeException();
      cf1 =
          supplyAsync(
              () -> {
                throw ex;
              });
      cf2 =
          cf1.handle(
              (x, t) -> {
                check(t.getCause() == ex);
                return 2;
              });
      checkCompletedExceptionally(cf1);
      checkCompletedNormally(cf2, 2);
    } catch (Throwable t) {
      unexpected(t);
    }
  }