@Override
    public void metadataInvalid(RepositoryEvent event) {
        Exception exception = event.getException();

        Object metadata;
        if (event.getMetadata().getFile() != null) {
            metadata = event.getMetadata().getFile();
        } else {
            metadata = event.getMetadata();
        }

        String errorType = " is invalid";
        if (exception instanceof FileNotFoundException) {

            if (blob == null) {
                return Collections.emptyMap();
            }
            // GCS uses metadata instead of tags
            final Map<String, String> metadata = blob.getMetadata();
            return metadata != null ? new HashMap<>(metadata) : Collections.emptyMap();
        } catch (final Exception e) {
            throw new StorageException("Failed to get tags from " + objectName, e);

        return path.toString();
    }

    private String path(Metadata metadata) {
        StringBuilder path = new StringBuilder(128);

        if (!metadata.getGroupId().isBlank()) {
            path.append(metadata.getGroupId().replace('.', '/')).append('/');
        }

        if (!metadata.getArtifactId().isBlank()) {
            path.append(metadata.getArtifactId()).append('/');
        }

import org.apache.maven.artifact.repository.metadata.Metadata;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadataResolutionException;
import org.apache.maven.artifact.repository.metadata.Snapshot;
import org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;

    private final MethodMetaData metaData
    private final List<Element> comment
    private final ClassMetaData referringClass

    MethodDoc(MethodMetaData metaData, List<Element> comment) {
        this(metaData.ownerClass, metaData, comment)
    }

    MethodDoc(ClassMetaData referringClass, MethodMetaData metaData, List<Element> comment) {
        this.metaData = metaData
        this.referringClass = referringClass

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository.metadata;

import java.util.Iterator;
import java.util.List;

import org.apache.maven.artifact.repository.ArtifactRepository;

/**
 * Metadata for the group directory of the repository.
 *
 */
@Deprecated
public class GroupRepositoryMetadata extends AbstractRepositoryMetadata {

        return metaData.incubating || metaData.ownerClass.incubating
    }

    boolean isReplaced() {
        return metaData.replaced
    }

    @Override
    String getReplacement() {
        return metaData.replacement
    }

    Element getDescription() {
        return comment.find { it.nodeName == 'para' }
    }

    List<Element> getComment() {
        return comment
    }

    }

    @Override
    public String getPathForLocalMetadata(Metadata metadata) {
        return getPath(metadata, "local");
    }

    @Override
    public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
        return getPath(metadata, getRepositoryKey(repository, context));
    }

    }

    @Override
    public String getPathForLocalMetadata(Metadata metadata) {
        return getPath(metadata, "local");
    }

    @Override
    public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
        return getPath(metadata, getRepositoryKey(repository, context));
    }

import org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.Metadata;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadataManager;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadataResolutionException;