* <li>Information on how to use the artifact as a dependency: whether to add it to the classpath, whether to load its
 * 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
     */

        if (artifact.hasClassifier()) {
            path.append(ARTIFACT_SEPARATOR).append(artifact.getClassifier());
        }

        if (artifactHandler.getExtension() != null
                && !artifactHandler.getExtension().isEmpty()) {
            path.append(GROUP_SEPARATOR).append(artifactHandler.getExtension());
        }

        return path.toString();
    }

    private ArtifactHandlerMock artifactHandler;

    @BeforeEach
    void setUp() throws Exception {
        artifactHandler = new ArtifactHandlerMock();
        versionRange = VersionRange.createFromVersion(version);
        artifact = new DefaultArtifact(groupId, artifactId, versionRange, scope, type, classifier, artifactHandler);

import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.api.JavaPathType;
import org.apache.maven.api.Type;
import org.apache.maven.api.services.TypeRegistry;
import org.apache.maven.artifact.handler.ArtifactHandler;
import org.apache.maven.artifact.handler.DefaultArtifactHandler;
import org.apache.maven.eventspy.AbstractEventSpy;
import org.apache.maven.execution.ExecutionEvent;

import static java.util.Objects.requireNonNull;

            path.append(ARTIFACT_SEPARATOR).append(artifact.getClassifier());
        }

        if (artifactHandler.getExtension() != null
                && !artifactHandler.getExtension().isEmpty()) {
            path.append(GROUP_SEPARATOR).append(artifactHandler.getExtension());
        }

        return path.toString();
    }

 */
@Named
@Singleton
public class LegacyArtifactHandlerManager extends AbstractEventSpy {
    private final Map<String, ArtifactHandler> artifactHandlers;

    private final Map<String, ArtifactHandler> allHandlers = new ConcurrentHashMap<>();

    @Inject
    public LegacyArtifactHandlerManager(Map<String, ArtifactHandler> artifactHandlers) {
        this.artifactHandlers = requireNonNull(artifactHandlers);
    }

    @Override

 * under the License.
 */
package org.apache.maven.internal.transformation.impl;

import org.apache.maven.artifact.handler.ArtifactHandler;

import static java.util.Objects.requireNonNull;

class TransformedArtifactHandler implements ArtifactHandler {

    private final String classifier;

    private final String extension;

    private final String packaging;

import java.util.Map;

import org.apache.maven.artifact.handler.ArtifactHandler;

/**
 */
public interface ArtifactHandlerManager {
    String ROLE = ArtifactHandlerManager.class.getName();

    ArtifactHandler getArtifactHandler(String type);

    @Deprecated
    void addHandlers(Map<String, ArtifactHandler> handlers);

 */
package org.apache.maven.artifact;

import java.io.File;
import java.util.Collection;
import java.util.List;
import java.util.regex.Pattern;

import org.apache.maven.artifact.handler.ArtifactHandler;
import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;

        nonNull(id, "id");
        return usedTypes.computeIfAbsent(id, i -> {
            Type type = types.get(id);
            if (type == null) {
                // Copy data as the ArtifactHandler is not immutable, but Type should be.
                ArtifactHandler handler = manager.getArtifactHandler(id);
                type = new DefaultType(
                        id,