DcerpcException thrown = assertThrows(DcerpcException.class, () -> {
            dcerpcBinding.setOption("endpoint", endpoint);
        }, "Should throw DcerpcException for invalid endpoint format.");

        assertTrue(thrown.getMessage().contains("Bad endpoint"), "Exception message should indicate a bad endpoint.");
    }

    @Test
    void testSetOptionOtherKey() throws DcerpcException {

        verify(dest, times(1)).getAttributes();
        verify(dest, never()).setPathInformation(anyInt(), anyLong(), anyLong(), anyLong());
    }

    @Test
    @DisplayName("openCopyTargetFile throws NPE on null dest (invalid input)")
    void openCopyTargetFile_nullDest_throwsNPE() {
        // Arrange
        SmbFile dest = null;

        // Act + Assert

            return StringUtil.EMPTY;
        }
        try {
            return MimeUtility.decodeText(value);
        } catch (final UnsupportedEncodingException e) {
            logger.warn("Invalid encoding.", e);
            return StringUtil.EMPTY;
        }
    }

    /**
     * Gets the mail properties used for email processing.
     *
     * @return the mail properties
     */

    public void test_throwAndCatchWithCause() {
        // Test throwing and catching the exception with cause
        String expectedMessage = "System error occurred";
        Exception expectedCause = new IllegalStateException("Invalid state");

        try {
            throw new FessSystemException(expectedMessage, expectedCause);
        } catch (FessSystemException e) {
            assertEquals(expectedMessage, e.getMessage());

            this.request = new NetServerEnum2(th.getConfig(), locator.getURL().getHost(), NetServerEnum2.SV_TYPE_ALL);
        } else {
            throw new SmbException("The requested list operations is invalid: " + locator.getURL());
        }
        this.response = new NetServerEnum2Response(th.getConfig());

        this.treeHandle = th.acquire();
        try {
            this.next = open();

        final Reader rd = new StringReader(inputStr);
        try (TokenStream stream = createTokenStream(rd)) {
            if (stream == null) {
                throw new IOException("Invalid tokenizer.");
            }
            stream.reset();

            int offset = 0;
            while (stream.incrementToken()) {

        // StructureSize (2 bytes) - must be 44
        this.structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (this.structureSize != 44) {
            throw new SMBProtocolDecodingException("Invalid lease break structure size: " + this.structureSize);
        }
        bufferIndex += 2;

        // Reserved (2 bytes)
        bufferIndex += 2;

        // Flags (4 bytes)

    }

    public void test_stackTrace() {
        // Test that stack trace is properly maintained
        String message = "Stack trace test";
        Exception cause = new IllegalArgumentException("Invalid argument");
        ScriptEngineException exception = new ScriptEngineException(message, cause);

        // Verify stack trace exists
        StackTraceElement[] stackTrace = exception.getStackTrace();

                state++;
                break;
            } catch (final Exception e) {
                throw new SmbException(e.getMessage(), e);
            }
        default:
            throw new SmbException("Invalid state");
        }
        return token;
    }

        });

        assertThrows(CIFSException.class, () -> {
            compressionService.decompress(null, CompressionService.COMPRESSION_LZ77);
        });
    }

    @Test
    @DisplayName("Test invalid offset/length handling")
    public void testInvalidOffsetLength() {
        assertThrows(CIFSException.class, () -> {
            compressionService.compress(testData, -1, testData.length, CompressionService.COMPRESSION_LZ77);