logger.debug("Group '{}' initialized with {} properties", groupName, groupedProperties.size());
userConf = new HashMap<ConfigToken<?>, Object>();
for (Entry<Object, Object> entry : groupedProperties.entrySet()) {
String key = entry.getKey().toString().trim().toLowerCase();
ConfigToken<?> configToken = TableConfig.findByPropertyName(key);
if (configToken != null) {
userConf.put(configToken, entry.getValue().toString());