return pluginArtifactRepositories;
    }

    @Override
    public ProjectBuildingRequest setPluginArtifactRepositories(List<ArtifactRepository> pluginArtifactRepositories) {
        if (pluginArtifactRepositories != null) {
            this.pluginArtifactRepositories = new ArrayList<>(pluginArtifactRepositories);
        } else {

    }

    @Override
    public MavenExecutionRequest setPluginArtifactRepositories(List<ArtifactRepository> pluginArtifactRepositories) {
        if (pluginArtifactRepositories != null) {
            this.pluginArtifactRepositories = new ArrayList<>(pluginArtifactRepositories);
        } else {
            this.pluginArtifactRepositories = null;
        }

        return this;
    }