}

    private String join(String message1, String message2) {
        String message = "";

        if (message1 != null && !message1.isEmpty()) {
            message = message1.trim();
        }

        if (message2 != null && !message2.isEmpty()) {
            if (message != null && !message.isEmpty()) {
                if (message.endsWith(".") || message.endsWith("!") || message.endsWith(":")) {

     */
    public MojoExecutionException(String message, Throwable cause) {
        super(message, cause);
    }

    /**
     * Construct a new <code>MojoExecutionException</code> exception providing a <code>message</code>.
     *
     * @param message
     */
    public MojoExecutionException(String message) {
        super(message);
    }

    /**

        messages.add(message);
    }

    public String toString() {
        return render("");
    }

    public String render(String indentation) {
        if (messages.size() == 0) {
            return indentation + "There were no validation errors.";
        }

        StringBuilder message = new StringBuilder();

        //        if ( messages.size() == 1 )
        //        {

    }

    /**
     * Creates a new exception with specified detail message for the given repository.
     *
     * @param message The detail message, may be {@code null}.
     * @param repository The repository that caused the error, may be {@code null}.
     */
    public InvalidRepositoryException(String message, Repository repository) {
        super(message);
        this.repository = repository;
    }

    /**

    public LifecycleExecutionException(String message) {
        super(message);
    }

    public LifecycleExecutionException(Throwable cause) {
        super(cause);
    }

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

    public LifecycleExecutionException(String message, MavenProject project) {
        super(message);
        this.project = project;
    }

        super(message, artifact, remoteRepositories);
    }

    public ArtifactResolutionException(String message, Artifact artifact, Throwable cause) {
        super(message, artifact, null, cause);
    }

    public ArtifactResolutionException(

    private Throwable exception;

    private String message;

    private String reference;

    private List<ExceptionSummary> children;

    public ExceptionSummary(Throwable exception, String message, String reference) {
        this(exception, message, reference, null);
    }

    public ExceptionSummary(Throwable exception, String message, String reference, List<ExceptionSummary> children) {

    private final String modelId;

    private final String message;

    private final Exception exception;

    private final Severity severity;

    private final Version version;

    /**
     * Creates a new problem with the specified message and exception.
     *
     * @param message The message describing the problem, may be {@code null}.

     * @param message the message to append
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder error(Object message) {
        return style("." + Constants.MAVEN_STYLE_ERROR_NAME + ":-" + Constants.MAVEN_STYLE_ERROR_DEFAULT, message);
    }

    /**
     * Append message content in success style.
     * By default, bold green
     *
     * @param message the message to append

    private String downloadUrl;

    protected ArtifactNotFoundException(
            String message, Artifact artifact, List<ArtifactRepository> remoteRepositories) {
        super(message, artifact, remoteRepositories);
    }

    public ArtifactNotFoundException(String message, Artifact artifact) {
        this(
                message,
                artifact.getGroupId(),
                artifact.getArtifactId(),