void testConstructorWithNullHttpRequest(@Mock Principal mockPrincipal) {
        // HttpServletRequestWrapper throws IllegalArgumentException for null request
        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () -> new NtlmHttpServletRequest(null, mockPrincipal));
        assertEquals("Request cannot be null", ex.getMessage());
    }

    @Test

        // Test that invalid valueOf throws exception
        assertThrows(IllegalArgumentException.class, () -> {
            WitnessServiceType.valueOf("INVALID_TYPE");
        });

        assertThrows(IllegalArgumentException.class, () -> {
            WitnessVersion.valueOf("INVALID_VERSION");
        });

        assertThrows(IllegalArgumentException.class, () -> {
            WitnessEventType.valueOf("INVALID_EVENT");

    @DisplayName("Test invalid configuration")
    void testInvalidConfiguration() {
        assertThrows(IllegalArgumentException.class, () -> new SimpleCircuitBreaker("invalid", 0, 2, 100));
        assertThrows(IllegalArgumentException.class, () -> new SimpleCircuitBreaker("invalid", 3, 0, 100));
        assertThrows(IllegalArgumentException.class, () -> new SimpleCircuitBreaker("invalid", 3, 2, -1));
    }

    @Test

        assertThrows(IllegalArgumentException.class, () -> InputValidator.validateArrayBounds(null, 0, dst, 0, 10));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validateArrayBounds(src, 0, null, 0, 10));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validateArrayBounds(src, -1, dst, 0, 10));

     * @throws IllegalArgumentException if size is invalid
     */
    public static void validateBufferSize(int size, int maxSize, String fieldName) {
        if (size < 0) {
            throw new IllegalArgumentException(fieldName + " size cannot be negative: " + size);
        }
        if (size > maxSize) {

        assertEquals(complexMessageCode, exception.getMessageCode());
    }

    public void test_causeChainPropagation() {
        // Setup - create a chain of exceptions
        final IllegalArgumentException rootCause = new IllegalArgumentException("Invalid character in query");
        final IllegalStateException middleCause = new IllegalStateException("Query parser state error", rootCause);
        final String message = "Query processing failed";

        if (masterPassword == null || masterPassword.length == 0) {
            throw new IllegalArgumentException("Master password cannot be null or empty");
        }
        if (salt == null || salt.length != SALT_SIZE) {
            throw new IllegalArgumentException("Invalid salt");
        }

        this.salt = salt.clone();
        this.masterKey = deriveKey(masterPassword, this.salt);

        SsoProcessException exception1 = new SsoProcessException(message, ioException);
        assertEquals(ioException, exception1.getCause());

        // Test with IllegalArgumentException
        Exception illegalArgException = new IllegalArgumentException("Invalid SSO parameter");
        SsoProcessException exception2 = new SsoProcessException(message, illegalArgException);
        assertEquals(illegalArgException, exception2.getCause());

    public static HandleType fromValue(int value) {
        for (HandleType type : values()) {
            if (type.value == value) {
                return type;
            }
        }
        throw new IllegalArgumentException("Unknown handle type value: " + value);
    }

        // Test with IllegalArgumentException
        IllegalArgumentException illegalArgException = new IllegalArgumentException("Invalid parameter");
        SsoLoginException exception2 = new SsoLoginException(message, illegalArgException);
        assertEquals(message, exception2.getMessage());
        assertTrue(exception2.getCause() instanceof IllegalArgumentException);

        // Test with NullPointerException