result.addFailure(new RuntimeException("RuntimeException"));
        result.addFailure(new IllegalStateException("IllegalStateException"));
        result.addFailure(new NullPointerException("NullPointerException"));

        assertEquals(4, result.getFailures().size());
        assertTrue(result.getFailures().get(0) instanceof Exception);
        assertTrue(result.getFailures().get(1) instanceof RuntimeException);

        }
    }

    /**
     * Test that try-with-resources handles null InputStream correctly.
     * Verifies that null InputStream doesn't cause NullPointerException during close.
     */
    @Test
    public void testTryWithResources_nullInputStreamSafety() {
        // This test demonstrates that try-with-resources handles null safely
        try (InputStream is = null) {

        when(mockHealthResponse.isTimedOut()).thenReturn(false);
        when(mockFuture.actionGet(anyLong(), any(TimeUnit.class))).thenReturn(mockHealthResponse);

        // Should not throw NullPointerException
        try {
            // Note: We can't easily test connect() fully without mocking createClient()
            // This test verifies the null check logic indirectly

     * @param normalizer The Normalizer instance.
     * @param analyzer The SuggestAnalyzer instance.
     * @param threadPool The ExecutorService for thread pooling.
     * @throws NullPointerException if any of the required parameters is null.
     */
    public Suggester(final Client client, final SuggestSettings settings, final ReadingConverter readingConverter,

    public void test_destroyObject_nullPooledObject() {
        try {
            factory.destroyObject(null);
            // Should not throw NPE - implementation should handle gracefully or throw
        } catch (NullPointerException e) {
            // Acceptable behavior
            assertTrue(true);
        } catch (Exception e) {
            // Other exceptions might be acceptable
            assertTrue(true);
        }
    }