verify(mockDelegate).isIpcSigningEnforced();
        verify(mockDelegate, times(2)).isForceExtendedSecurity();
    }

    @Test
    @DisplayName("Delegation should handle null returns gracefully")
    void testNullReturnHandling() {
        // Given - configure delegate to return nulls
        when(mockDelegate.getRandom()).thenReturn(null);
        when(mockDelegate.getLocalAddr()).thenReturn(null);

        assertEquals(intermediateCause, finalException.getCause());
        assertEquals(rootCause, finalException.getCause().getCause());
    }

    @Test
    @DisplayName("Should handle null message gracefully")
    void testNullMessage() {
        // When/Then
        assertDoesNotThrow(() -> {
            SmbException exception = new SmbException((String) null);
            assertNotNull(exception);
        });

orientation.

## Our Standards

Examples of behavior that contributes to creating a positive environment
include:

* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members

Examples of unacceptable behavior by participants include:

        ComponentUtil.setFessConfig(fessConfig);

        // Create new instance after registering the updated config
        purgeDocJob = new PurgeDocJob();

        // Execute the job - should handle empty field name gracefully
        try {
            String result = purgeDocJob.execute();
            // The job should handle the exception internally but since QueryBuilders.rangeQuery

        assertEquals(0x800, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_STREAM_WRITE);
    }

    @Test
    @DisplayName("Should handle null file ID gracefully")
    void testNullFileId() {
        // Given
        byte[] nullFileId = new byte[16]; // All zeros
        Configuration config = mock(Configuration.class);

        assertTrue(rateLimiter.checkAttempt("user7", ip), "Should be allowed after manual unblock");
    }

    @Test
    public void testNullUsername() throws Exception {
        // Null username should be handled gracefully
        assertTrue(rateLimiter.checkAttempt(null, "192.168.1.8"), "Null username should be allowed");

        // Should not affect IP limiting
        rateLimiter.recordFailure(null, "192.168.1.8");

        void testNullDataNonZeroLength() {
            request.setData(null, 0, 100);

            byte[] buffer = new byte[256];

            // Should handle gracefully or throw appropriate exception
            assertThrows(NullPointerException.class, () -> request.writeBytesWireFormat(buffer, 0));
        }

        @Test

        assertNotNull(md4Hash);
        assertNotNull(md5Hash);
        assertEquals(16, md4Hash.length);
        assertEquals(16, md5Hash.length);
    }

    @Test
    @DisplayName("Should handle null input gracefully")
    void testNullInputHandling() {
        // When/Then
        assertThrows(NullPointerException.class, () -> {
            MessageDigest md4 = Crypto.getMD4();
            md4.digest(null);
        });

			// For all other unhandled errors we exit and fail.
			return nil, nil, err
		}

		select {
		case <-ticker.C:
		case <-globalOSSignalCh:
			return nil, nil, fmt.Errorf("Initializing data volumes gracefully stopped")
		}
	}

        assertEquals(0, buffer[1], "Second byte must be null terminator");
    }

    @Test
    @DisplayName("writeBytesWireFormat handles empty string gracefully")
    void testWriteEmptyString() {
        when(mockConfig.getOemEncoding()).thenReturn("windows-1252");
        SmbComQueryInformation emptyCmd = new SmbComQueryInformation(mockConfig, "");