assertTrue(exception.getMessage().contains("FILE_EXISTS"));
        assertTrue(exception.getMessage().contains("File already exists"));
        assertTrue(exception.getMessage().contains("document.pdf already exists"));

        // Without custom message
        exception = new SmbOperationException(SmbOperationException.ErrorCode.DISK_FULL, null);
        assertTrue(exception.getMessage().contains("DISK_FULL"));

    @Test
    void testNoArgsConstructor() {
        // Test the constructor with no arguments
        RequestTimeoutException exception = new RequestTimeoutException();
        assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testMessageConstructor() {

        results.add(result2);

        ProjectBuildingException exception = new ProjectBuildingException(results);
        String message = exception.getMessage();

        assertTrue(
                message.contains("3 problems were encountered while processing the POMs (2 errors)"),
                "Message should contain problem count and error count");

     * @return true if TCP fallback is recommended
     */
    public boolean shouldFallbackToTcp(Exception error) {
        // Hardware errors suggest RDMA is not working
        if (error.getMessage() != null) {
            String message = error.getMessage().toLowerCase();
            if (message.contains("hardware") || message.contains("device not found") || message.contains("driver")

        SMBSignatureValidationException ex = new SMBSignatureValidationException(msg);

        // Assert
        if (msg == null) {
            assertNull(ex.getMessage(), "Null message should remain null");
        } else {
            assertEquals(msg, ex.getMessage(), "Message should be stored as provided");
        }
        assertNull(ex.getCause(), "Cause should be null for message-only ctor");

            logger.error("Failed to purge user info.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        // update job logs
        try {
            jobLogService.updateStatus();
        } catch (final Exception e) {
            logger.error("Failed to purge job logs.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        return resultBuf.toString();
    }

            // Verify error message is clear and helpful
            assertNotNull(exception.getMessage());
            assertTrue(exception.getMessage().contains("Expected structureSize = 4"));
        }

        @Test
        @DisplayName("Should handle zero structure size")
        void testZeroStructureSize() {
            // Given

        final StringBuilder buf = new StringBuilder(256);
        buf.append(cause.getMessage()).append(" : [");
        SQLException next = cause.getNextException();
        while (next != null) {
            buf.append(MessageFormatter.getSimpleMessage("ECL0071", next.getMessage(), Integer.toString(next.getErrorCode()),
                    next.getSQLState())).append("], [");

        } else {
            message = "Mojo execution failed";
        }

        if (cause != null && cause.getMessage() != null && !cause.getMessage().isEmpty()) {
            message += ": " + cause.getMessage();
        } else {
            message += ".";
        }

        return message;
    }

        DcerpcException exception = new DcerpcException(errorCode);

        assertEquals(errorCode, exception.getErrorCode(), "Error code should match the input.");
        assertTrue(exception.getMessage().contains("DCERPC_FAULT_ACCESS_DENIED"),
                "Message should contain the corresponding fault message.");
    }

    /**
     * Test constructor DcerpcException(int error) with an unknown error code.
     */