assertNull(txMap.put(emp2, emp2));
assertEquals(2, txMap.size());
assertEquals(2, txMap.keySet().size());
assertEquals(0, txMap.keySet(new SqlPredicate("age = 10")).size());
assertEquals(0, txMap.values(new SqlPredicate("age = 10")).size());
assertEquals(2, txMap.keySet(new SqlPredicate("age >= 10")).size());
assertEquals(2, txMap.values(new SqlPredicate("age >= 10")).size());
context.commitTransaction();
assertEquals(2, map.size());