this.pluginGroups = Collections.unmodifiableList(pluginGroups);
        } else {
            this.pluginGroups = Collections.emptyList();
        }

        return this;
    }

    public Model getPom() {
        return pom;
    }

    public DefaultPluginPrefixRequest setPom(Model pom) {
        this.pom = pom;

        return this;
    }

    public List<RemoteRepository> getRepositories() {