assertTrue(Files.exists(temp));
    Files.setLastModifiedTime(temp, FileTime.fromMillis(0));
    assertEquals(0, Files.getLastModifiedTime(temp).toMillis());
    MoreFiles.touch(temp);
    assertThat(Files.getLastModifiedTime(temp).toMillis()).isNotEqualTo(0);
  }

  public void testCreateParentDirectories_root() throws IOException {

    assertTrue(Files.exists(temp));
    Files.setLastModifiedTime(temp, FileTime.fromMillis(0));
    assertEquals(0, Files.getLastModifiedTime(temp).toMillis());
    MoreFiles.touch(temp);
    assertThat(Files.getLastModifiedTime(temp).toMillis()).isNotEqualTo(0);
  }

  public void testCreateParentDirectories_root() throws IOException {

    }

    def "final releases are sorted by version"() {
        def snapshot = snapshot('4.3')
        def rc = releasedVersion('4.3-rc-1')
        def referenceBuildTime = System.currentTimeMillis() - DAYS.toMillis(10)
        def finalVersionsBefore = [
            releasedVersion('4.3.1', referenceBuildTime + 7),
            releasedVersion('4.4', referenceBuildTime + 5),
            releasedVersion('4.3', referenceBuildTime + 2),

      assertThat(lastMethodCalled).isEqualTo(method);
    }

    void assertMethodWithTimeout(String method, long timeout, TimeUnit unit) {
      assertLastMethodCalled(method + "Timeout");
      assertEquals(unit.toMillis(timeout), lastTimeoutInMillis);
    }

    @Override
    public boolean awaitTermination(long timeout, TimeUnit unit) {
      lastMethodCalled = "awaitTermination";
      return false;
    }

      assertThat(lastMethodCalled).isEqualTo(method);
    }

    void assertMethodWithTimeout(String method, long timeout, TimeUnit unit) {
      assertLastMethodCalled(method + "Timeout");
      assertEquals(unit.toMillis(timeout), lastTimeoutInMillis);
    }

    @Override
    public boolean awaitTermination(long timeout, TimeUnit unit) {
      lastMethodCalled = "awaitTermination";
      return false;
    }

    slowChannel.exitClose.countDown(); // release the interrupter

    // We need to wait for the runner to exit.  To make sure that the interrupting thread wakes it
    // back up.
    runner.join(SECONDS.toMillis(10));
  }

  // waits for the given thread to be blocked on the given object
  private static void awaitBlockedOnInstanceOf(Thread t, Class<?> blocker)
      throws InterruptedException {

    slowChannel.exitClose.countDown(); // release the interrupter

    // We need to wait for the runner to exit.  To make sure that the interrupting thread wakes it
    // back up.
    runner.join(SECONDS.toMillis(10));
  }

  // waits for the given thread to be blocked on the given object
  private static void awaitBlockedOnInstanceOf(Thread t, Class<?> blocker)
      throws InterruptedException {

    thread.awaitWaiting();
    Thread.class.getMethod("suspend").invoke(thread);
    // Sleep for enough time to add 1500 milliseconds of overwait to the get() call.
    long toWaitMillis = 3500 - NANOSECONDS.toMillis(System.nanoTime() - thread.startTime);
    Thread.sleep(toWaitMillis);
    thread.setPriority(Thread.MAX_PRIORITY);
    Thread.class.getMethod("resume").invoke(thread);
    thread.join();

    service.stopAsync();
    service.secondBarrier.await();
    service.awaitTerminated();
    // Sleep for a while just to ensure that our task wasn't called again.
    Thread.sleep(UNIT.toMillis(3 * DELAY));
    assertEquals(1, service.numIterations.get());
  }

  public void testCustomScheduler_deadlock() throws InterruptedException, BrokenBarrierException {

    service.stopAsync();
    service.secondBarrier.await();
    service.awaitTerminated();
    // Sleep for a while just to ensure that our task wasn't called again.
    Thread.sleep(UNIT.toMillis(3 * DELAY));
    assertEquals(1, service.numIterations.get());
  }

  public void testCustomScheduler_deadlock() throws InterruptedException, BrokenBarrierException {