- private final ConcurrentHashMap<String, SCLValue> values = new ConcurrentHashMap<String, SCLValue>();
- private final ConcurrentHashMap<String, SCLRelation> relations = new ConcurrentHashMap<String, SCLRelation>();
- private final ConcurrentHashMap<String, SCLEntityType> entityTypes = new ConcurrentHashMap<String, SCLEntityType>();
+ private final Map<String, SCLValue> values = Collections.synchronizedMap(new HashMap<String, SCLValue>());
+ private final Map<String, SCLRelation> relations = Collections.synchronizedMap(new HashMap<String, SCLRelation>());
+ private final Map<String, SCLEntityType> entityTypes = Collections.synchronizedMap(new HashMap<String, SCLEntityType>());