// Then
        assertNotNull(restored);
        assertEquals("serialize me", restored.getMessage());
        assertNotNull(restored.getCause());
        assertEquals(IllegalArgumentException.class, restored.getCause().getClass());
        assertEquals("iaex", restored.getCause().getMessage());
    }

        assertEquals("Final message", exception.getMessage());
        assertSame(intermediateCause, exception.getCause());
        assertSame(rootCause, exception.getCause().getCause());
    }

    @Test
    public void testToString() {
        String message = "Test error message";
        CurlException exception = new CurlException(message);

        assertNull(nullCauseException.getCause());

        // Test with both null
        TransportException bothNullException = new TransportException(null, null);
        assertNull(bothNullException.getMessage());
        assertNull(bothNullException.getCause());
    }

    @Test
    @DisplayName("Test deprecated getRootCause method returns the same as getCause")
    @SuppressWarnings("deprecation")

        } else {
            assertEquals(msg, ex.getMessage(), "Message should be stored as provided");
        }
        assertSame(cause, ex.getCause(), "Cause should be stored and retrievable");
        assertSame(cause, ex.getRootCause(), "Deprecated getRootCause should match getCause");
        assertEquals(NtStatus.NT_STATUS_UNSUCCESSFUL, ex.getNtStatus(), "Status should default to unsuccessful for message+cause ctor");
    }

     */
    @Test
    void testDefaultConstructor() {
        PACDecodingException e = new PACDecodingException();
        // Expect null message and null cause
        assertNull(e.getMessage());
        assertNull(e.getCause());
    }

    /**
     * Test the constructor with a message.
     */
    @Test
    void testMessageConstructor() {
        String errorMessage = "This is a test error message.";

        // Assert - message and cause are null
        assertNull(ex.getMessage(), "Default constructor should have null message");
        assertNull(ex.getCause(), "Default constructor should have null cause");

        // Assert - toString shows class name when message is null
        assertEquals(SMBProtocolDowngradeException.class.getName(), ex.toString());

        CIFSUnsupportedCryptoException exception = new CIFSUnsupportedCryptoException();

        // Then
        assertNull(exception.getMessage(), "Default constructor should have null message");
        assertNull(exception.getCause(), "Default constructor should have null cause");
        assertTrue(exception instanceof RuntimeCIFSException, "Should extend RuntimeCIFSException");

        CIFSException exception = new CIFSException(message, cause);

        // Then
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    @Test
    @DisplayName("Should create CIFSException with cause only")
    void testCIFSExceptionWithCauseOnly() {
        // Given
        Exception cause = new RuntimeException("Root cause");

        RuntimeException thrown = assertThrows(RuntimeException.class, supplier::get);
        assertInstanceOf(SmbUnsupportedOperationException.class, thrown.getCause());
        assertEquals("boom", thrown.getCause().getMessage());
        verify(supplier, times(1)).get();
        verifyNoMoreInteractions(supplier);
    }

    @Test

                            && exc.getCause() instanceof PluginResolutionException
                            && exc.getCause().getCause() instanceof ArtifactResolutionException
                            && exc.getCause().getCause().getCause() instanceof ArtifactNotFoundException;