/*
     * @see junit.framework.TestCase#setUp()
     */
    @BeforeEach
    public void setUp() throws Exception {
        conflictResolver = (ConflictResolver) container.lookup(ConflictResolver.ROLE, roleHint);

        a1 = createArtifact("a", "1.0");
        a2 = createArtifact("a", "2.0");
        b1 = createArtifact("b", "1.0");
    }

        }
    }

    private <T> Collection<T> getExtensionComponents(Collection<MavenProject> projects, Class<T> role) {
        Collection<T> foundComponents = new LinkedHashSet<>();
        foundComponents.addAll(lookup.lookupList(role));
        foundComponents.addAll(getProjectScopedExtensionComponents(projects, role));
        return foundComponents;
    }

 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

    <T> T computeIfAbsent(String groupId, String artifactId, String version, String tag, Supplier<T> data);

    }

    @Deprecated
    public Object lookup(String role) throws ComponentLookupException {
        return container.lookup(role);
    }

    @Deprecated
    public Object lookup(String role, String roleHint) throws ComponentLookupException {
        return container.lookup(role, roleHint);
    }

    @Deprecated
    public List<Object> lookupList(String role) throws ComponentLookupException {

 * dependencies transitively</li>
 * </ul>
 *
 */
public interface ArtifactHandler {
    @Deprecated
    String ROLE = ArtifactHandler.class.getName();

    /**
     * Returns the file name extension of the artifact;
     * e.g. "jar", "pom", "xml", etc.
     *
     * @return the file extension
     */
    String getExtension();

 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

    <T> T computeIfAbsent(String groupId, String artifactId, String version, String tag, Supplier<T> data);