return !RuntimeException.class.isAssignableFrom(type);
  }

  @VisibleForTesting
  static void checkExceptionClassValidity(Class<? extends Exception> exceptionClass) {
    checkArgument(
        isCheckedException(exceptionClass),
        "Futures.getChecked exception type (%s) must not be a RuntimeException",
        exceptionClass);
    checkArgument(

          .put(NullPointerException.class, e -> e instanceof NullPointerException)
          .put(NumberFormatException.class, e -> e instanceof NumberFormatException)
          .put(RuntimeException.class, e -> e instanceof RuntimeException)
          .put(TimeoutException.class, e -> e instanceof TimeoutException)
          .put(UnsupportedCharsetException.class, e -> e instanceof UnsupportedCharsetException)

          .put(NullPointerException.class, e -> e instanceof NullPointerException)
          .put(NumberFormatException.class, e -> e instanceof NumberFormatException)
          .put(RuntimeException.class, e -> e instanceof RuntimeException)
          .put(TimeoutException.class, e -> e instanceof TimeoutException)
          .put(UnsupportedCharsetException.class, e -> e instanceof UnsupportedCharsetException)

    }

    @Override
    public ApiResponse handleApplicationException(final ApiFailureResource resource, final RuntimeException cause) {
        if (cause instanceof LoginUnauthorizedException) {
            return asJson(createFailureBean(Status.UNAUTHORIZED, "Unauthorized request.")).httpStatus(HTTP_UNAUTHORIZED);
        }

    assertEquals(false, tearDownOne.ran);
    assertEquals(false, tearDownTwo.ran);

    try {
      stack.runTearDown();
      fail("runTearDown should have thrown an exception");
    } catch (RuntimeException expected) {
      assertThat(expected).hasMessageThat().isEqualTo("two");
      assertThat(getOnlyElement(asList(expected.getSuppressed())))
          .hasMessageThat()
          .isEqualTo("one");
    }

          public void run() {
            try {
              okayToRun.await();
            } catch (InterruptedException e) {
              Thread.currentThread().interrupt();
              throw new RuntimeException(e);
            }
            runCalled.getAndIncrement();
          }
        },
        directExecutor());
    Runnable execute =
        new Runnable() {
          @Override

            if (!pluginId) {
                throw new RuntimeException("No id specified for plugin: ${plugin.'@description' ?: 'unknown'}")
            }
            plugin.extends.each { Element e ->
                def targetClass = e.'@targetClass'
                if (!targetClass) {
                    throw new RuntimeException("No targetClass specified for extension provided by plugin '$pluginId'.")
                }

          .put(NullPointerException.class, e -> e instanceof NullPointerException)
          .put(NumberFormatException.class, e -> e instanceof NumberFormatException)
          .put(RuntimeException.class, e -> e instanceof RuntimeException)
          .put(SomeCheckedException.class, e -> e instanceof SomeCheckedException)
          .put(SomeError.class, e -> e instanceof SomeError)

        try {
            setPrivateField(ctx, "hashAlgos", new int[] { PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512 });
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return ctx;
    }

    private NegotiateContextRequest createMockEncryptionContext() {
        EncryptionNegotiateContext ctx = new EncryptionNegotiateContext();
        try {

                // Simulate an exception during processing
                if (is.available() > 0) {
                    throw new RuntimeException("Simulated processing error");
                }
            }
            fail("Should have thrown RuntimeException");
        } catch (RuntimeException e) {
            assertEquals("Simulated processing error", e.getMessage());