} // -- void setGroupId( String )

    /**
     * Set the version of the extension.
     *
     * @param version a version object.
     */
    public void setVersion(String version) {
        this.version = version;
    } // -- void setVersion( String )

    /**
     * Gets the identifier of the extension.
     *

        CoreExtension oldExtension = new CoreExtension();
        oldExtension.setGroupId(extension.getGroupId());
        oldExtension.setArtifactId(extension.getArtifactId());
        oldExtension.setVersion(extension.getVersion());
        if (extension.getClassLoadingStrategy() != null) {
            oldExtension.setClassLoadingStrategy(extension.getClassLoadingStrategy());
        }
        this.extension = oldExtension;
    }

                                    .setVersion(lowerBound.getVersion().toString())
                            : null;
                    org.eclipse.aether.artifact.Artifact upperArtifact = upperBound != null
                            ? request.getArtifact()
                                    .setVersion(upperBound.getVersion().toString())
                            : null;

        projectManager = new DefaultProjectManager(session, artifactManager);

        mavenProject.setGroupId("myGroup");
        mavenProject.setArtifactId("myArtifact");
        mavenProject.setVersion("1.0-SNAPSHOT");
        when(artifact.getGroupId()).thenReturn("myGroup");
        when(artifact.getArtifactId()).thenReturn("myArtifact");

        Dependency dependency = new Dependency();
        dependency.setGroupId(mavenProject.getGroupId());
        dependency.setArtifactId(mavenProject.getArtifactId());
        dependency.setVersion(mavenProject.getVersion());
        return dependency;
    }

    private List<ProjectBuildingResult> createProjectBuildingResultMocks(Collection<MavenProject> projects) {
        return projects.stream()

        assertEquals("..", adjustment);
    }

    @Test
    void testIdentityProtoInheritance() {
        Parent parent = new Parent();

        parent.setGroupId("test-group");
        parent.setVersion("1000");
        parent.setArtifactId("test-artifact");

        Model model = new Model();

        model.setParent(parent);
        model.setArtifactId("real-artifact");

        //
        Dependency d = new Dependency();
        d.setGroupId("org.apache.maven.its");
        d.setArtifactId("b");
        d.setVersion("0.1");
        d.setScope(Artifact.SCOPE_COMPILE);
        Artifact artifact = repositorySystem.createDependencyArtifact(d);

        ArtifactResolutionRequest request = new ArtifactResolutionRequest()

                coreExtension.setArtifactId(interpolatedTrimmed(parser.nextText(), "artifactId"));
            } else if (checkFieldWithDuplicate(parser, "version", null, parsed)) {
                coreExtension.setVersion(interpolatedTrimmed(parser.nextText(), "version"));
            } else if (checkFieldWithDuplicate(parser, "classLoadingStrategy", null, parsed)) {

        // resolve plugin version as necessary
        if (plugin.getVersion() == null) {
            PluginVersionRequest versionRequest = new DefaultPluginVersionRequest(plugin, session, repositories);
            try {
                plugin.setVersion(pluginVersionResolver.resolve(versionRequest).getVersion());
            } catch (PluginVersionResolutionException e) {

        assertEquals("1", childProject.getParentArtifact().getVersion());
        assertNotNull(childProject.getParent());
        assertEquals("1", childProject.getParent().getVersion());
        assertNotNull(childProject.getModel().getParent());
        assertEquals("[1,10]", childProject.getModel().getParent().getVersion());
    }

    /**