private CombinedClassLoader combinedClassLoader;
public void init() {
// create a listener for group configuration.
IMap groupConfiguration = instance.getMap(GROUPS_CONFIG);
groupConfiguration.addEntryListener(this, true);
try {
// create group stored in configuration admin
Configuration configuration = configurationAdmin.getConfiguration(Configurations.GROUP);
if (configuration != null) {
Dictionary<String, Object> properties = configuration.getProperties();