{
Map<String, Double> map = new HashMap<String, Double>();
map.put("KEY", 3.0);
map.put("ANOTHERKEY", 4.0);
PersistenceManager persist = new PersistenceManager(driver, database, login, password);
persist.saveObject(map);
persist.close();
persist = new PersistenceManager(driver, database, login, password);
List<HashMap<Object, Object>> results = persist.getObjectsMatching(new HashMap<Object, Object>());
assertEquals(1, results.size());