/** {@inheritDoc} */
    @Override
    public boolean isRelease() {
        return artifact.isRelease();
    }

    /** {@inheritDoc} */
    @Override
    public void setRelease(boolean release) {
        artifact.setRelease(release);
    }

    /** {@inheritDoc} */
    @Override
    public List<ArtifactVersion> getAvailableVersions() {
        return artifact.getAvailableVersions();
    }

        // TODO Should this be changed for MNG-6754 too?
        versioning.updateTimestamp();
        versioning.addVersion(artifact.getBaseVersion());
        if (artifact.isRelease()) {
            versioning.setRelease(artifact.getBaseVersion());
        }
        artifact.addMetadata(new ArtifactRepositoryMetadata(artifact, versioning));
    }

                + " It is derived from the main artifact.");
    }

    @Override
    public boolean isRelease() {
        return parent.isRelease();
    }

    @Override
    public void setRelease(boolean release) {
        throw new UnsupportedOperationException("Cannot change the version information for an attached artifact."
                + " It is derived from the main artifact.");
    }

    @Override

    }

    @Override
    public void setArtifactHandler(ArtifactHandler artifactHandler) {
        this.artifactHandler = artifactHandler;
    }

    @Override
    public void setRelease(boolean release) {
        this.release = release;
    }

    @Override
    public boolean isRelease() {
        return release;
    }

    @Override

      }
    }

    @Override
    void putThread(Waiter waiter, Thread newValue) {
      waiterThreadUpdater.setRelease(waiter, newValue);
    }

    @Override
    void putNext(Waiter waiter, @Nullable Waiter newValue) {
      waiterNextUpdater.setRelease(waiter, newValue);
    }

    @Override
    boolean casWaiters(

        Repository repository = new Repository();
        repository.setId(RepositorySystem.DEFAULT_REMOTE_REPO_ID);
        repository.setUrl("file://" + repoDir.toURI().getPath());
        repository.setReleases(policy);
        repository.setSnapshots(policy);

        return Arrays.asList(repositorySystem.buildArtifactRepository(repository));
    }

        Repository repository = new Repository();
        repository.setId(MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID);
        repository.setUrl("file://" + repoDir.toURI().getPath());
        repository.setReleases(policy);
        repository.setSnapshots(policy);

        return Arrays.asList(MavenRepositorySystem.buildArtifactRepository(repository));
    }

        if (src != null) {
            RepositoryPolicy tgt = target.getReleases();
            if (tgt == null) {
                tgt = new RepositoryPolicy();
                target.setReleases(tgt);
            }
            mergeRepositoryPolicy(tgt, src, sourceDominant, context);
        }
    }

    protected void mergeRepository_Snapshots(