private final RuntimeException ex;

    private ThrowingIterator(RuntimeException ex) {
      this.ex = ex;
    }

    @Override
    public boolean hasNext() {
      // IteratorTester doesn't expect exceptions for hasNext().
      return true;
    }

    @Override
    public E next() {
      ex.fillInStackTrace();
      throw ex;
    }

    @Override

    ListeningScheduledExecutorService service = listeningDecorator(delegate);
    RuntimeException ex = new RuntimeException();
    ListenableFuture<?> future =
        service.schedule(new ThrowingRunnable(0, ex), 1, TimeUnit.MILLISECONDS);
    assertExecutionException(future, ex);
    assertEquals(0, delegate.getQueue().size());
  }

  public void testListeningDecorator_schedulePeriodic() throws Exception {

    RuntimeException re = new RuntimeException(iae);
    IllegalStateException ex = new IllegalStateException(re);

    assertEquals(asList(ex, re, iae, sue), Throwables.getCausalChain(ex));
    assertSame(sue, Iterables.getOnlyElement(Throwables.getCausalChain(sue)));

    List<Throwable> causes = Throwables.getCausalChain(ex);
    try {
      causes.add(new RuntimeException());
      fail("List should be unmodifiable");

    RuntimeException re = new RuntimeException(iae);
    IllegalStateException ex = new IllegalStateException(re);

    assertEquals(asList(ex, re, iae, sue), Throwables.getCausalChain(ex));
    assertSame(sue, Iterables.getOnlyElement(Throwables.getCausalChain(sue)));

    List<Throwable> causes = Throwables.getCausalChain(ex);
    try {
      causes.add(new RuntimeException());
      fail("List should be unmodifiable");

    try {
      UnsignedBytes.checkedCast(value);
      fail("Cast to byte should have failed: " + value);
    } catch (IllegalArgumentException ex) {
      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {

    ListeningScheduledExecutorService service = listeningDecorator(delegate);
    RuntimeException ex = new RuntimeException();
    ListenableFuture<?> future =
        service.schedule(new ThrowingRunnable(0, ex), 1, TimeUnit.MILLISECONDS);
    assertExecutionException(future, ex);
    assertEquals(0, delegate.getQueue().size());
  }

  public void testListeningDecorator_schedulePeriodic() throws Exception {

    f.set("foo");
  }

  public void testExecutorSuccess() {
    CountingSameThreadExecutor ex = new CountingSameThreadExecutor();
    SettableFuture<String> f = SettableFuture.create();
    MockCallback callback = new MockCallback("foo");
    Futures.addCallback(f, callback, ex);
    f.set("foo");
    assertEquals(1, ex.runCount);
  }

  // Error cases
  public void testSameThreadExecutionException() {

    try {
      Shorts.checkedCast(value);
      fail("Cast to short should have failed: " + value);
    } catch (IllegalArgumentException ex) {
      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {
    for (short x : VALUES) {

    try {
      SignedBytes.checkedCast(value);
      fail("Cast to byte should have failed: " + value);
    } catch (IllegalArgumentException ex) {
      assertWithMessage(value + " not found in exception text: " + ex.getMessage())
          .that(ex.getMessage().contains(String.valueOf(value)))
          .isTrue();
    }
  }

  public void testCompare() {
    for (byte x : VALUES) {

    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[bytes.length * 2];
    IllegalStateException ex =
        assertThrows(IllegalStateException.class, () -> in.readFully(actual));
    assertThat(ex).hasCauseThat().isInstanceOf(EOFException.class);
  }

  public void testNewDataInput_readFullyWithOffset() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);