*
     * @return The exception that caused this problem or {@code null} if not applicable.
     */
    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.
     *

                                </div>
                            </div>
                            <div class="card-body">
                                    <%-- Message --%>
                                <div>
                                    <la:info id="msg" message="true">
                                        <div class="alert alert-info">${msg}</div>
                                    </la:info>

                                </div>
                            </div>
                            <div class="card-body">
                                    <%-- Message --%>
                                <div>
                                    <la:info id="msg" message="true">
                                        <div class="alert alert-info">${msg}</div>
                                    </la:info>

                                <%-- Card Body --%>
                            <div class="card-body">
                                    <%-- Message --%>
                                <div>
                                    <la:info id="msg" message="true">
                                        <div class="alert alert-info">${msg}</div>
                                    </la:info>

                        .append('"'));
        buf.append('}');
        printLog(buf.toString());
    }

    /**
     * Print the log.
     * @param message The message.
     */
    protected void printLog(final String message) {
        logger.info(message);
    }

    /**
     * Get the client IP.
     * @return The client IP.
     */
    protected String getClientIp() {

public class VersionRangeResolverException extends MavenException {

    @Serial
    private static final long serialVersionUID = 4455478418692494141L;

    public VersionRangeResolverException(String message, Throwable cause) {
        super(message, cause);
    }

@Consumer
public class VersionResolverException extends MavenException {

    @Serial
    private static final long serialVersionUID = -2105433586719466573L;

    public VersionResolverException(String message, Throwable cause) {
        super(message, cause);
    }

@Experimental
public class DependencyResolverException extends MavenException {

    @Serial
    private static final long serialVersionUID = 1101171569179057614L;

    public DependencyResolverException(String message, Throwable cause) {
        super(message, cause);
    }

            String message;
            if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getApiJsonResponseExceptionIncluded())) {
                logger.warn("Failed to access to Web API.", e);
                message = e.getMessage();
            } else {
                final String errorCode = UUID.randomUUID().toString();
                message = "[" + errorCode + "] Failed to access to Web API.";

    private void mockResponse(int code, String message, Map<String, List<String>> headers, InputStream errorStream) throws IOException {
        mockResponse(this.mockConnection, code, message, headers, errorStream);
    }

    /**
     * Helper method to mock the response of a specific HttpURLConnection instance.
     */