ServletRuntimeException runtimeException = new ServletRuntimeException(servletException);

        // Verify it's an instance of RuntimeException
        assertTrue(runtimeException instanceof RuntimeException);
        assertTrue(runtimeException instanceof Exception);
        assertTrue(runtimeException instanceof Throwable);
    }

    @Test
    public void test_stackTrace() {

    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's HashMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {
      super.testEntrySetRetainAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's HashMap.entrySet().retainAll(null) doesn't throws NPE.
    }

    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {
      super.testEntrySetRetainAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().retainAll(null) doesn't throws NPE.
    }

    timeLimiter.runWithTimeout(Runnables.doNothing(), DELAY_MS, MILLISECONDS);
  }

  public void testRunWithTimeout_wrapsUncheckedException() throws Exception {
    RuntimeException exception = new RuntimeException("test");
    UncheckedExecutionException e =
        assertThrows(
            UncheckedExecutionException.class,

        assertEquals("Error message", exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructorWithMessageAndCause() {
        final RuntimeException cause = new RuntimeException("Root cause");
        final LlmException exception = new LlmException("Error occurred", cause);
        assertEquals("Error occurred", exception.getMessage());
        assertSame(cause, exception.getCause());

    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {
      super.testEntrySetRetainAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().retainAll(null) doesn't throws NPE.
    }

      immediateFailedFuture(CHECKED_EXCEPTION);
  static final RuntimeException UNCHECKED_EXCEPTION = new RuntimeException("mymessage");
  static final Future<String> FAILED_FUTURE_UNCHECKED_EXCEPTION =
      immediateFailedFuture(UNCHECKED_EXCEPTION);
  static final RuntimeException RUNTIME_EXCEPTION = new RuntimeException();
  static final OtherThrowable OTHER_THROWABLE = new OtherThrowable();

     *
     * @throws RuntimeException If PUT fails for any reason.
     */
    void put(@Nonnull Path source, @Nonnull URI relativeTarget);

    /**
     * PUTs the source byte array to target URI. The target MUST BE relative from the
     * {@link RemoteRepository#getUrl()} root.
     *
     * @throws RuntimeException If PUT fails for any reason.
     */
    void putBytes(@Nonnull byte[] source, @Nonnull URI relativeTarget);

    /**

        String innerMessage = "Inner exception";
        String outerMessage = "Outer exception";
        RuntimeException innerException = new RuntimeException(innerMessage);
        StorageException exception = new StorageException(outerMessage, innerException);

        assertNotNull(exception.getStackTrace());
        assertTrue(exception.getStackTrace().length > 0);
        assertEquals(innerException, exception.getCause());

    timeLimiter.runWithTimeout(Runnables.doNothing(), DELAY_MS, MILLISECONDS);
  }

  public void testRunWithTimeout_wrapsUncheckedException() throws Exception {
    RuntimeException exception = new RuntimeException("test");
    UncheckedExecutionException e =
        assertThrows(
            UncheckedExecutionException.class,