String now = versioningRef.getLastUpdated();
                if (lastUpdated != null && now != null && now.compareTo(lastUpdated) < 0) {
                    getLogger()
                            .warn("The last updated timestamp in " + metadataFile + " refers to the future (now = "
                                    + now

 * resources
 *
 * We need to look at Maven, and Nexus as use cases and figure out what each of them needs to be
 * able to do
 *
 * - now what is really the difference between this and loading a component in plexus - custom
 * classloading capability - remote resolution of dependencies - do we want a model for sharing

    protected ArtifactScopeEnum artifactScope;
    protected String classifier;

    /**
     * explanation: why this MD was chosen over its siblings
     * in the resulting structure (classpath for now)
     */
    protected String why;

    /** dependencies of the artifact behind this metadata */
    protected Collection<ArtifactMetadata> dependencies;

    /** metadata URI */
    protected String uri;

            if (!visited.contains(v)) {
                dropList.add(v);
            }
        }

        if (dropList.size() < 1) {
            return g;
        }

        // now - drop vertices
        TreeSet<MetadataGraphVertex> vertices = g.getVertices();
        for (MetadataGraphVertex v : dropList) {
            vertices.remove(v);
        }

        return g;
    }

 * <li>error - no model, but diagnostics
 * <li>error - (partial) model and diagnostics
 * </ol>
 * Could encode these variants as subclasses, but kept in one for now
 *
 * @param <T> the model type
 */
public class Result<T> {

    /**
     * Success without warnings
     *
     * @param model
     */
    public static <T> Result<T> success(T model) {

        } catch (PluginResolutionException e) {
            logger.debug("Ignoring unresolvable plugin version {}", version, e);
            return false;
        } catch (Exception e) {
            // ignore for now and delay failure to higher level processing
            return true;
        }

        try {
            pluginManager.checkPrerequisites(pluginDescriptor);
        } catch (Exception e) {

            // 2.0.X == 2-X == 2.0.0.X for any string x
            checkVersionsEqual("2-" + x, "2.0." + x); // previously ordered, now equals
            checkVersionsEqual("2-" + x, "2.0.0." + x); // previously ordered, now equals
            checkVersionsEqual("2.0." + x, "2.0.0." + x); // previously ordered, now equals
        }
    }

    @Test
    public void testMng7714() {

                        request.addRemoteRepository(MavenRepositorySystem.buildArtifactRepository(remoteRepository));
                    } catch (InvalidRepositoryException e) {
                        // do nothing for now
                    }
                }

                List<Repository> pluginRepositories = rawProfile.getPluginRepositories();
                for (Repository pluginRepo : pluginRepositories) {

        assertEquals(createSet(new Object[] {a.artifact, modifiedC}), res.getArtifacts(), "Check artifact list");
        Artifact artifact = getArtifact("c", res.getArtifacts());
        // local wins now, and irrelevant if not local as test/provided aren't transitive
        // assertEquals( Artifact.SCOPE_COMPILE, artifact.getArtifactScope(), "Check artifactScope" );

    private static final Pattern FILTER_1 = Pattern.compile("[^\\d._-]");
    private static final Pattern FILTER_2 = Pattern.compile("[._-]");
    private static final Pattern FILTER_3 = Pattern.compile("\\."); // used for split now

    @Override
    public boolean isActive(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

        if (activation == null) {