plugin.setGroupId(tok[0]);
            plugin.setArtifactId(tok[1]);
            plugin.setVersion(tok[2]);
            goal = tok[3];

            // This won't be valid, but it constructs something easy to read in the error message
            for (int idx = 4; idx < tok.length; idx++) {
                goal += ":" + tok[idx];
            }
        } else if (numTokens == 3) {

            } catch (ArtifactNotFoundException anfe) {
                // These are cases where the artifact just isn't present in any of the remote repositories
                // because it wasn't deployed, or it was deployed in the wrong place.

                synchronized (result) {
                    result.addMissingArtifact(artifact);
                }
            } catch (ArtifactResolutionException e) {

                    && versionRangeResult.getVersionConstraint().getRange().getUpperBound() == null) {
                // Message below is checked for in the MNG-2199 core IT.
                throw new UnresolvableModelException(
                        String.format(
                                "The requested parent version range '%s' does not specify an upper bound",

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Manages the class realms used by Maven. <strong>Warning:</strong> This is an internal utility class that is only
 * public for technical reasons, it is not part of the public API. In particular, this class can be changed or deleted
 * without prior notice.
 *
 */
@Named
@Singleton
public class DefaultClassRealmManager implements ClassRealmManager {

    // Backward compat

    /**
     * Returns the plugin context for given key ({@link PluginDescriptor#getPluginLookupKey()} and
     * {@link MavenProject}, never returns {@code null} as if context not present, creates it.
     *
     * <strong>Implementation note:</strong> while this method return type is {@link Map}, the returned map instance
     * implements {@link ConcurrentMap} as well.
     *
     */

                } else {
                    /*
                     * NOTE: Other configurators like the map-oriented one don't call into the listener, so do it the
                     * hard way.
                     */
                    validateParameters(mojoDescriptor, configuration, expressionEvaluator);
                }
            }

    @Nonnull
    List<Project> getProjects();

    /**
     * Returns the plugin context for mojo being executed and the specified
     * {@link Project}, never returns {@code null} as if context not present, creates it.
     *
     * <strong>Implementation note:</strong> while this method return type is {@link Map}, the
     * returned map instance implements {@link java.util.concurrent.ConcurrentMap} as well.
     *

        // topological order of the projects, and therefore can potentially change the build order.
        //
        // Note that participants may affect the topological order of the projects but it is
        // not expected that a participant will add or remove projects from the session.
        //

        graphResult = buildGraph(session);

        if (graphResult.hasErrors()) {

                }
                Artifact artifact;
                if (d.getScope().equals(Artifact.SCOPE_TEST) || d.getScope().equals(Artifact.SCOPE_PROVIDED)) {
                    /* don't call createDependencyArtifact as it'll ignore test and provided scopes */
                    artifact = artifactFactory.createArtifact(
                            d.getGroupId(), d.getArtifactId(), d.getVersion(), d.getScope(), d.getType());
                } else {

     */
    UPGRADE_MODULES("--upgrade-module-path"),

    /**
     * The path identified by the Java {@code --patch-module} option.
     * Note that this option is incomplete, because it must be followed by a module name.
     * Use this type only when the module to patch is unknown.
     *
     * @see #patchModule(String)
     */
    PATCH_MODULE("--patch-module"),

    /**