Was:
ods.setDriverType("thin");
ods.setServerName("ocwgrid01.nbd.local");
ods.setDatabaseName("SCXD2");
ods.setPortNumber(1521);
ods.setUser("system");
ods.setPassword("ali120");

Is:
OracleDataSource ods = new OracleDataSource();
ods.setUser("system");
ods.setPassword("ali120");
ods.setConnectionCachingEnabled(true);
ods.setConnectionCacheName("MyCache");
ods.setFastConnectionFailoverEnabled(true);
ods.setONSConfiguration("nodes=ser1:4200,ser2:4200");
ods.setURL("jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=on)(ADDRESS=(PROTOCOL=TCP)(HOST=owlndb260)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=owlndb260)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=SCXD2)))");
Connection conn = ods.getConnection();