java - PreparedStatement executeUpdate on an OracleDataSource connection does not auto commit -

call preparedstatement.executeupdate() returns (with count of rows updated). db not reflect update. seeing issue ojdbc7.jar (tried both java 7 , java 8 ses).

final string update_sql = "update myportfolio set stock = ? key = ?";     final string stock = 'so';// pre ipo :)     final long key = 12345l;      try (connection conn = pds.getconnection(); preparedstatement proc = conn.preparestatement(update_sql)) {         //conn.setautocommit(false); --> works         conn.setautocommit(true); // default...but making sure         proc.setstring(1, stock);         proc.setlong(2, key);         int rowcount = proc.executeupdate();         //conn.commit(); --> works          logger.info("updated {} rows. sql = {}. stock = {}, key = {}, inboundkey = {}", rowcount, update_sql, stock, key);         // logs 1 row updated. db still shows stale data (old stock) key 12345l.     } catch (sqlexception e) {         throw new persistenceexception(e);     }      // pool data source settings     pooldatasource        pds = pooldatasourcefactory.getpooldatasource();     pds.setconnectionfactoryclassname("oracle.jdbc.pool.oracledatasource");     pds.setconnectionpoolname(cachename);     pds.seturl(dburl);     pds.setuser(username);     pds.setpassword(password);      pds.setminpoolsize(5);     pds.setmaxpoolsize(10);     pds.setinitialpoolsize(7);     pds.setinactiveconnectiontimeout(10); 

if using executeupdate() or execute() need connection.commit(). , if dont want execute commit can go :preparestatement() not require commit().