NoPluginFoundForPrefixException, LifecycleNotFoundException, PluginVersionResolutionException {
        if (project.equals(ProjectDependencyGraphStub.A)) {
            return getProjectAExecutionPlan();
        }
        if (project.equals(ProjectDependencyGraphStub.B)) {
            return getProjectBExecutionPlan();
        }
        // The remaining are basically "for future expansion"

        public int hashCode() {
            return 127 * "value".hashCode() ^ this.value.hashCode();
        }

        public boolean equals(Object o) {
            return o instanceof Named && this.value.equals(((Named) o).value());
        }

        public Class<? extends Annotation> annotationType() {
            return Named.class;
        }
    }

    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
        return result;
    }

    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {

                PluginDescriptor pluginDescriptor =
                        pluginManager.loadPlugin(plugin, request.getRepositories(), request.getRepositorySession());

                if (request.getPrefix().equals(pluginDescriptor.getGoalPrefix())) {
                    return new DefaultPluginPrefixResult(plugin);
                }
            } catch (Exception e) {
                if (logger.isDebugEnabled()) {

                new AbstractValueSource(false) {

                    public Object getValue(String expression) {
                        if (projectDir != null && "basedir".equals(expression)) {
                            return projectDir.getAbsolutePath();
                        }
                        return null;
                    }
                },

        MetadataGraphVertex v = new MetadataGraphVertex(md);
        v.setCompareVersion(versionedVertices);
        v.setCompareScope(scopedVertices);

        for (MetadataGraphVertex gv : vertices) {
            if (gv.equals(v)) {
                return gv;
            }
        }

        return null;
    }
    // ------------------------------------------------------------------------

        } else if (Artifact.SCOPE_COMPILE.equals(originalScope) && Artifact.SCOPE_COMPILE.equals(inheritedScope)) {
            // added to retain compile scope. Remove if you want compile inherited as runtime
            effectiveScope = Artifact.SCOPE_COMPILE;
        } else if (Artifact.SCOPE_TEST.equals(inheritedScope)) {
            effectiveScope = Artifact.SCOPE_TEST;
        } else if (Artifact.SCOPE_PROVIDED.equals(inheritedScope)) {

            d.setGroupId(groupId);
            d.setArtifactId(artifactId);
            d.setVersion(version);
            d.setScope(scope);

            if (systemPath != null && scope.equals(Artifact.SCOPE_SYSTEM)) {
                d.setSystemPath(systemPath);
            }

            if (exclusion != null) {
                d.addExclusion(exclusion);
            }

    }

    private void setNext() {
        currentBuild = projects.hasNext() ? projects.next() : null;
    }

    private boolean ownsRealOutputStream(ProjectSegment projectBuild) {
        return projectBuild.equals(currentBuild);
    }

    private PrintStream getThreadBoundPrintStream() {
        ProjectSegment threadProject = projectBuildThreadLocal.get();
        if (threadProject == null) {

        restrictions = version.getRestrictions();
        assertEquals(0, restrictions.size(), CHECK_NUM_RESTRICTIONS);

        assertFalse(
                spec.equals(version),
                "check !VersionRange.createFromVersionSpec(x).equals(VersionRange.createFromVersion(x))");
    }