* two of the same artifacts to a single project.
 *
 * TODO Make this a checked exception, and modify the API of MavenProjectHelper.
 * Currently, this modification would create compatibility problems for existing plugins.
 */
public class DuplicateArtifactAttachmentException extends RuntimeException {

    private static final String DEFAULT_MESSAGE = "Duplicate artifact attachment detected.";

    private Artifact artifact;

    void persistResumptionData(MavenProject rootProject, BuildResumptionData buildResumptionData)
            throws BuildResumptionPersistenceException;

    /**
     * Uses previously stored resumption data to enrich an existing execution request.
     * @param request The execution request that will be enriched.
     * @param rootProject The root project that is being built.
     */

/**
 * <p>
 * Encapsulates parameters of ProjectExecutionListener callback methods and is meant to provide API evolution path
 * should it become necessary to introduce new parameters in the existing callbacks in the future.
 * </p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 *
 * @see ProjectExecutionListener
 * @since 3.1.2
 */

     * to be not present in any regular repository and likewise has no artifact descriptor. Artifact resolution will
     * verify the path and resolve the artifact if the path actually denotes an existing file. If the path isn't valid,
     * resolution will fail and no attempts to search local/remote repositories are made.
     */
    public static final String LOCAL_PATH = "localPath";

    int VALIDATION_LEVEL_MAVEN_2_0 = 20;

    /**
     * Denotes validation as performed by Maven 3.0. This validation level is meant for existing projects.
     */
    int VALIDATION_LEVEL_MAVEN_3_0 = 30;

    /**
     * Denotes validation as performed by Maven 3.1. This validation level is meant for existing projects.
     */
    int VALIDATION_LEVEL_MAVEN_3_1 = 31;

    /**

                    Object key = getPluginKey().apply(element);
                    Plugin existing = master.get(key);
                    if (existing != null) {
                        existing = mergePlugin(existing, element, sourceDominant, context);
                        master.put(key, existing);
                        if (!pending.isEmpty()) {
                            predecessors.put(key, pending);

                Plugin existing = plugins.get(plugin);
                if (existing != null) {
                    if (existing.getVersion() == null) {
                        existing.setVersion(plugin.getVersion());
                        existing.setLocation("version", location);
                    }
                    plugin = existing;
                } else {

     */
    public void addProfile(Profile profile) {
        String profileId = profile.getId();

        Profile existing = profilesById.get(profileId);
        if (existing != null) {
            logger.warn("Overriding profile: '" + profileId + "' (source: " + existing.getSource()
                    + ") with new instance from source: " + profile.getSource());
        }

                        .expectResult(MODULE_B),
                scenario("Selected missing project as required and as optional")
                        .activeRequiredProjects("non-existing-module")
                        .activeOptionalProjects("non-existing-module")
                        .expectResult(MavenExecutionException.class, "not find the selected project"),
                scenario("Resuming from project")

ontainsString("b")))</pre> */ public static <LHS> org.hamcrest.core.CombinableMatcher.CombinableEitherMatc<LHS> either(org.hamcrest.Matcher<? super LHS> matcher) { return org.hamcrest.core.CombinableMatcher.<LHS>either(matcher); } /** * Wraps an existing matcher, overriding its description with that specified. All other functions are * delegated to the decorated matcher, including its mismatch description. * <p/> * For example: * <pre>describedAs("a big decimal equal to %0", equalTo(myBigDecimal),...