when(mockResponse.getException()).thenReturn(testException);
        assertEquals(testException, mockResponse.getException());

        // Test null exception
        when(mockResponse.getException()).thenReturn(null);
        assertNull(mockResponse.getException());

        // Verify the method was called
        verify(mockResponse, times(2)).getException();
    }

    @Test

        assertEquals(-1, p1.getColumnNumber());
        assertNull(p1.getException());

        Problem p2 = collector.getProblems().get(1);
        assertEquals(Severity.WARNING, p2.getSeverity());
        assertEquals("", p2.getMessage());
        assertEquals(42, p2.getLineNumber());
        assertEquals(127, p2.getColumnNumber());
        assertEquals(e2, p2.getException());
    }

    @Test
    void testSetSource() {

            ArtifactTransferResource artifact = wrap(event.getWagon().getRepository(), event.getResource());

            ArtifactTransferEvent evt;
            if (event.getException() != null) {
                evt = new ArtifactTransferEvent(wagon, event.getException(), event.getRequestType(), artifact);
            } else {
                evt = new ArtifactTransferEvent(wagon, event.getEventType(), event.getRequestType(), artifact);

    void testGetException() {
        DefaultProblem problem = new DefaultProblem(null, null, null, -1, -1, null);
        assertNull(problem.getException());

        Exception e = new Exception();
        problem = new DefaultProblem(null, null, null, -1, -1, e);
        assertSame(e, problem.getException());
    }

    @Test
    void testGetSource() {
        DefaultProblem problem = new DefaultProblem(null, null, null, -1, -1, null);

     */
    void reset();

    /**
     * Gets the exception associated with this response.
     *
     * @return an exception linked to an error
     */
    Exception getException();

    /**
     * Sets an exception for this response.
     *
     * @param e the exception to set
     */
    void exception(Exception e);

    /**

        this.asyncHandled = asyncHandled;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#getException()
     */
    @Override
    public Exception getException() {
        return this.exception;
    }

    /**
     *
     * @return error status code
     */
    @Override
    public final int getErrorCode() {

            if (!ModelProblem.Severity.WARNING.equals(req.getSeverity())) {
                errors.add(new ProfileActivationException(req.getMessage(), req.getException()));
            }
        });

        if (!errors.isEmpty()) {
            throw errors.get(0);
        }

        return profiles;
    }

    /* (non-Javadoc)

    Optional<MojoExecution> getMojoExecution();

    /**
     * Gets the exception that caused the event (if any).
     *
     * @return the exception or {@code empty()} if none
     */
    Optional<Exception> getException();

    /**
     * Gets the exception that caused this problem (if any).
     *
     * @return the exception that caused this problem or {@code null} if not applicable
     */
    @Nullable
    Exception getException();

    /**
     * Gets the message that describes this problem.
     *
     * @return the message describing this problem, never {@code null}
     */
    @Nonnull
    String getMessage();

    /**

    }

    public ArtifactTransferResource getResource() {
        return artifact;
    }

    /**
     * @return Returns the exception.
     */
    public Exception getException() {
        return exception;
    }

    /**
     * Returns the request type.
     *
     * @return Returns the request type. The Request type is one of