assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 490)).length());
            assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 500)).length());
            assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 510)).length());
            assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 520)).length());

      future.addListener(listenerLatch::countDown, exec);
    }

    assertSame(Boolean.TRUE, future.get());
    // Wait for the listener latch to complete.
    listenerLatch.await(500, MILLISECONDS);

    exec.shutdown();
    exec.awaitTermination(500, MILLISECONDS);
  }

      future.addListener(listenerLatch::countDown, exec);
    }

    assertSame(Boolean.TRUE, future.get());
    // Wait for the listener latch to complete.
    listenerLatch.await(500, MILLISECONDS);

    exec.shutdown();
    exec.awaitTermination(500, MILLISECONDS);
  }

   */
  public void testInvalidatingRemove() {
    MinMaxPriorityQueue<Integer> mmHeap = MinMaxPriorityQueue.create();
    mmHeap.addAll(
        Lists.newArrayList(1, 20, 1000, 2, 3, 30, 40, 10, 11, 12, 13, 300, 400, 500, 600));
    assertEquals(15, mmHeap.size());
    assertTrue("Heap is not intact initially", mmHeap.isIntact());
    mmHeap.remove(12);
    assertEquals(14, mmHeap.size());

    try (FileOutputStream fos = new FileOutputStream(testFile)) {
      for (int i = 0; i < 500; i++) {
        fos.write(dummyData);
      }
    }
    try (ReadableByteChannel inChannel = new RandomAccessFile(testFile, "r").getChannel()) {
      ByteStreams.copy(inChannel, outChannel);
    }
    byte[] actual = out.toByteArray();
    for (int i = 0; i < 500 * chunkSize; i += chunkSize) {

                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to select a job by {}", id, e);
                }
                lastException = e;
                ThreadUtil.sleep(RandomUtils.nextLong(500, 5000));
            }
        }
        logger.warn("Failed to select a job by {}", id, lastException);
        return OptionalEntity.empty();
    }

                        .anyMatch(a -> a.getName().equals(target.getName()) && a.getVersion().equals(target.getVersion()));
                if (!exists) {
                    ThreadUtil.sleep(500);
                    continue;
                }
                assertTrue(exists);
                done = true;
                break;
            }
            assertTrue(done);
        }

  public void testGoodFastHash128() {
    HashTestUtils.check2BitAvalanche(Hashing.goodFastHash(128), 250, 0.20);
    HashTestUtils.checkAvalanche(Hashing.goodFastHash(128), 500, 0.17);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.goodFastHash(128));
    HashTestUtils.checkNoFunnels(Hashing.goodFastHash(128));
    HashTestUtils.assertInvariants(Hashing.goodFastHash(128));
  }

   */
  public void testInvalidatingRemove() {
    MinMaxPriorityQueue<Integer> mmHeap = MinMaxPriorityQueue.create();
    mmHeap.addAll(
        Lists.newArrayList(1, 20, 1000, 2, 3, 30, 40, 10, 11, 12, 13, 300, 400, 500, 600));
    assertEquals(15, mmHeap.size());
    assertTrue("Heap is not intact initially", mmHeap.isIntact());
    mmHeap.remove(12);
    assertEquals(14, mmHeap.size());

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // #1
    }
    stopwatch.sleepMillis(500); // #2: to repay for the last acquire
    stopwatch.sleepMillis(4000); // #3: becomes cold again
    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // // #4
    }
    stopwatch.sleepMillis(500); // #5: to repay for the last acquire