* @return This request for chaining, never {@code null}.
     * @see #setRemoteRepositories(List)
     */
    ProjectBuildingRequest setRepositoryMerging(RepositoryMerging mode);

    /**
     * Gets the merge mode used to combine repositories declared in the POM with the repositories specified in this
     * request
     *
     * @return The merge mode, never {@code null}.
     */

    /**
     * Creates a user-friendly source hint for the specified model.
     *
     * @param model The model to create a source hint for, may be {@code null}.
     * @return The user-friendly source hint, never {@code null}.
     */
    static String toSourceHint(Model model) {
        if (model == null) {
            return "";
        }

        StringBuilder buffer = new StringBuilder(128);

     * @param request The project building request that holds further parameters, must not be {@code null}.
     * @return The result of the project building, never {@code null}.
     * @throws ProjectBuildingException If the project descriptor could not be successfully built.
     */

     * @return a {@code Source} pointing to the located pom or an empty {@code Optional} if none was found by this parser
     */
    @Nonnull
    Optional<Source> locate(@Nonnull Path dir);

    /**
     * Parse the model obtained previously by a previous call to {@link #locate(Path)}.
     *
     * @param source the source to parse, never {@code null}

     *
     * @return the start time as an Instant object, never {@code null}
     */
    @Nonnull
    Instant getStartTime();

    /**
     * Gets the directory of the topmost project being built, usually the current directory or the
     * directory pointed at by the {@code -f/--file} command line argument.
     *
     * @return the directory of the topmost project, never {@code null}
     * @see Project#isTopProject()

    /**
     * The resolved group id for the plugin.
     *
     * @return The resolved group id for the plugin, never {@code null}.
     */
    String getGroupId();

    /**
     * The resolved artifact id for the plugin.
     *
     * @return The resolved artifact id for the plugin, never {@code null}.
     */
    String getArtifactId();

    /**
     * The repository from which the plugin prefix was resolved.

 */
@Deprecated(since = "4.0.0")
public interface SettingsBuildingResult {

    /**
     * Gets the assembled settings.
     *
     * @return The assembled settings, never {@code null}.
     */
    Settings getEffectiveSettings();

    /**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity

     *
     * @return The model being built, never {@code null}.
     */
    Model getModel();

    /**
     * Gets the model building request being processed.
     *
     * @return The model building request being processed, never {@code null}.
     */
    ModelBuildingRequest getRequest();

    /**

    /**
     * Returns {@link Artifact} instance where to relocate to, or {@code null}.
     *
     * @param session The session, never {@code null}.
     * @param result The artifact descriptor result, never {@code null}.
     * @param model The artifact model, never {@code null}.
     * @return The {@link Artifact} to relocate to, or {@code null} if no relocation wanted.
     */

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

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

    /**