void parseThrowsOnNull() {
        TestSpnegoToken t = new TestSpnegoToken();
        IOException ex = assertThrows(IOException.class, () -> t.parse(null), "parse should throw IOException on null");
        assertTrue(ex.getMessage().toLowerCase().contains("null"));
    }

    @Test
    @DisplayName("toByteArray returns empty when no mechanismToken")
    void toByteArrayWhenNull() {
        TestSpnegoToken t = new TestSpnegoToken();

            metadata.storeInLocalRepository(localRepo, localRepo);
            merged = true;
        } catch (Exception e) {
            throw new RepositoryException(e.getMessage(), e);
        }
    }

    @Override
    public boolean isMerged() {
        return merged;
    }

    @Override
    public String getGroupId() {
        return emptify(metadata.getGroupId());

        return artifact.getProperty(key, defaultValue);
    }

    @Override
    public Map<String, String> getProperties() {
        return artifact.getProperties();
    }

    public String getMessage() {
        return message;
    }

     */
    Exception getException();

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

    /**
     * Gets the severity level of this problem.
     *
     * @return The severity level of this problem, never {@code null}.
     */
    Severity getSeverity();

            });
            resultBuf.append(count).append(" documents").append("\n");
        } catch (final Exception e) {
            logger.error("Could not update labels.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        return resultBuf.toString();
    }

    /**
     * Sets the query builder for filtering documents.
     *

            MalformedURLException ex =
                    assertThrows(MalformedURLException.class, () -> new SmbNamedPipe(url, SmbPipeResource.PIPE_TYPE_RDWR, ctx()));
            assertEquals("Named pipes are only valid on IPC$", ex.getMessage());
        }

        @Test
        @DisplayName("Null context throws NPE (invalid input)")
        void nullContextThrows() {

                        continue;
                    }

                    buffer.append("  [").append(problem.getSeverity()).append("] ");
                    buffer.append(problem.getMessage());

                    String location = "";
                    if (!problem.getSource().trim().isEmpty()) {
                        location = problem.getSource();
                    }

     */
    Exception getException();

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

    /**
     * Gets the severity level of this problem.
     *
     * @return The severity level of this problem, never {@code null}.
     */
    Severity getSeverity();

        for (ModelProblem problem : graphResult.getProblems()) {
            if (problem.getSeverity() == ModelProblem.Severity.WARNING) {
                logger.warn(problem.getMessage());
            } else {
                logger.error(problem.getMessage());
            }
        }

        if (!graphResult.hasErrors()) {
            ProjectDependencyGraph projectDependencyGraph = graphResult.get();

        final Locale locale = ComponentUtil.getRequestManager().getUserLocale();
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.file_auth_scheme_samba"), Constants.SAMBA));
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.file_auth_scheme_ftp"), Constants.FTP));
        RenderDataUtil.register(data, "protocolSchemeItems", itemList);
    }

    /**