public class DefaultArtifact implements Artifact {
    private final @Nonnull InternalSession session;
    private final @Nonnull org.eclipse.aether.artifact.Artifact artifact;
    private final String key;

    public DefaultArtifact(@Nonnull InternalSession session, @Nonnull org.eclipse.aether.artifact.Artifact artifact) {
        this.session = nonNull(session, "session");
        this.artifact = nonNull(artifact, "artifact");
        this.key = getGroupId()