buffer.append("----------").append(LS);

        int counter = 0;

        for (Artifact artifact : artifacts) {
            String message = (++counter) + ") " + artifact.getId();

            buffer.append(constructMissingArtifactMessage(
                    message,
                    "  ",
                    artifact.getGroupId(),
                    artifact.getArtifactId(),

    <downloadUrl>https://project.url/download</downloadUrl>
    <relocation>
      <groupId>reloc-gid</groupId>
      <artifactId>reloc-aid</artifactId>
      <version>reloc-version</version>
      <message>project-reloc-msg</message>
    </relocation>
  </distributionManagement>

  <modules>
    <module>sub</module>
  </modules>

  <properties>
    <itProperty>project-property</itProperty>
  </properties>

    a debug message.

  * If the wagon is bound to "file://" then:

    Retrieve the file or base-url file to be "downloaded".

    * If the file (or more usefully, the base-url file) exists, proceed.

    * If the file (or base-url file) doesn't exist, assume that this location
      is part of a file-share. Ignore the request and print a debug message
      as above.

    public static String getMessage(Exception e) {
        String message = e.getMessage();
        if (e instanceof XMLStreamException xe && xe.getLocation() != null) {
            int idx = message.indexOf("\nMessage: ");
            if (idx >= 0) {
                return message.substring(idx + "\nMessage: ".length());
            }
        }
        return message;
    }

    public StaxLocation(javax.xml.stream.Location location) {

    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;
    }

    public ProjectBuildingException(String projectId, String message, Throwable cause) {
        super(createMessage(message, projectId, null), cause);
        this.projectId = projectId;
    }

    /**
     * @param projectId
     * @param message
     * @param pomFile   pom file location
     */
    public ProjectBuildingException(String projectId, String message, File pomFile) {

        this.extension = (extension != null && !extension.isEmpty()) ? extension : null;
        this.version = (version != null && !version.isEmpty()) ? version : null;
        this.message = (message != null && !message.isEmpty()) ? message : null;
    }

    @Override
    public String getGroupId() {
        if (groupId != null) {
            return groupId;
        } else {
            return artifact.getGroupId();

                            if (logger.isDebugEnabled()) {
                                // Message below is checked for in the MNG-2199 core IT.
                                logger.warn("Failed to build parent project for " + project.getId(), e);
                            } else {
                                // Message below is checked for in the MNG-2199 core IT.

     *
     * @param message The error message, may be {@code null}.
     * @param lineNumber The one-based index of the line containing the error or {@code -1} if unknown.
     * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
     */
    public MetadataParseException(String message, int lineNumber, int columnNumber) {
        super(message);
        this.lineNumber = lineNumber;

    public MavenExecutionException(String message, File pomFile) {
        super(message);
        this.pomFile = pomFile;
    }

    public MavenExecutionException(String message, File pomFile, ProjectBuildingException cause) {
        super(message, cause);
        this.pomFile = pomFile;
    }

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