assertFalse(set.equals(newHashSet(4, 5, 6)));
    assertFalse(newHashSet(4, 5, 6).equals(set));

    Set<String> complex = Sets.newTreeSet(STRING_LENGTH);
    Collections.addAll(complex, "in", "the", "a");
    assertEquals(set, complex);
  }

  public void testEquals_bothDefaultOrdering_stringVsInt() {
    SortedSet<String> set = of("a", "b", "c");

        void shouldHandleResponseMapOperations() {
            assertEquals(0, transport.getResponseMapSize());
            // Response map is accessible through protected field for testing
            // but we avoid complex interactions here for performance
        }
    }

    // TLD with only 1 (wildcard) rule.
    checkPublicSuffix("mm", null)
    checkPublicSuffix("c.mm", null)
    checkPublicSuffix("b.c.mm", "b.c.mm")
    checkPublicSuffix("a.b.c.mm", "b.c.mm")
    // More complex TLD.
    checkPublicSuffix("jp", null)
    checkPublicSuffix("test.jp", "test.jp")
    checkPublicSuffix("www.test.jp", "test.jp")
    checkPublicSuffix("ac.jp", null)
    checkPublicSuffix("test.ac.jp", "test.ac.jp")

        } catch (Exception e) {
            // Expected
        }
        long duration = System.currentTimeMillis() - startTime;

        // Test should complete in under 1 second (much less than the original 25+ seconds)
        assertTrue("Test should complete quickly (duration: " + duration + "ms)", duration < 1000);
    }

    // Fast mock implementations to minimize overhead

            // Verify overwrite
            assertEquals(concreteImplementation, cacheMap.get(key));
            assertNotEquals(oldEntry, cacheMap.get(key));
        }
    }

    @Nested
    @DisplayName("Complex Scenarios Tests")
    class ComplexScenariosTests {

        @Test
        @DisplayName("Should handle multiple fixup operations")
        void testMultipleFixupOperations() {

        assertEquals(type, exception.getType());
        assertEquals(message, exception.getMessage());
    }

    @Test
    public void test_exceptionInComplexScenario() {
        // Test exception in a more complex scenario
        InvalidAccessTokenException exception = null;
        String expectedType = "Bearer";
        String expectedMessage = "Token has expired";

        // Simulate a token validation scenario

        assertNotSame(loginException.getMessageCode(), logoutException.getMessageCode());
    }

    @Test
    public void test_complexMessageCode() {
        // Setup - test with a complex message code that has parameters
        final String errorDetail = "Authentication failed";
        final VaMessenger<FessMessages> complexMessageCode =

    }

    @Test
    public void test_constructorWithThrowableCause_ChainedErrorsAndExceptions() {
        // Test with chain containing both Errors and Exceptions
        String message = "SSO login complex error chain";
        IllegalStateException innerException = new IllegalStateException("Bad state");
        AssertionError middleError = new AssertionError("Assertion failed", innerException);

But before that, handling asynchronous code was quite more complex and difficult.

In previous versions of Python, you could have used threads or [Gevent](https://www.gevent.org/). But the code is way more complex to understand, debug, and think about.

    public void test_query_complexFessSyntax() {
        final String query = "title:\"security policy\"^2 OR (+security +policy (guide OR document))";
        final IntentDetectionResult result = IntentDetectionResult.search(query, "complex query");

        assertEquals(query, result.getQuery());
    }

    @Test
    public void test_faq_complexFessSyntax() {
        final String query = "+\"OpenSearch\" (configuration OR settings OR config)";