### Question:
DB2Connector implements AuthenticateOp, SchemaOp, CreateOp,
        SearchOp<FilterWhereBuilder>, DeleteOp, UpdateAttributeValuesOp, TestOp, PoolableConnector,
        AttributeNormalizer { public void test() { cfg.validate(); DB2Specifics.testConnection(adminConn, getTestSQL()); } DB2Connector(); Uid authenticate(ObjectClass objectClass, String username, GuardedString password,
            OperationOptions options); Schema schema(); void checkAlive(); void dispose(); DB2Configuration getConfiguration(); void init(Configuration cfg); FilterTranslator<FilterWhereBuilder> createFilterTranslator(ObjectClass oclass,
            OperationOptions options); void executeQuery(ObjectClass oclass, FilterWhereBuilder where, ResultsHandler handler,
            OperationOptions options); Uid create(ObjectClass oclass, Set<Attribute> attrs, OperationOptions options); void delete(ObjectClass objClass, Uid uid, OperationOptions options); void test(); Uid update(ObjectClass objclass, Uid uid, Set<Attribute> attrs, OperationOptions options); Uid addAttributeValues(ObjectClass objclass, Uid uid, Set<Attribute> valuesToAdd,
            OperationOptions options); Uid removeAttributeValues(ObjectClass objclass, Uid uid, Set<Attribute> valuesToRemove,
            OperationOptions options); Attribute normalizeAttribute(ObjectClass oclass, Attribute attribute);  }### Answer:
@Test public void testTest() { facade.test(); }