}

    @Override
    protected Object getRepositoryBaseKey(RepositoryBase repositoryBase) {
        return repositoryBase.getId();
    }

    @Override
    protected Object getExtensionKey(Extension extension) {
        return extension.getGroupId() + ':' + extension.getArtifactId();
    }

    @Override
    protected Object getExclusionKey(Exclusion exclusion) {