Problems may be encountered if the wrong Oracle JDBC driver is used.
Various problems will be encountered if an incorrect Oracle JDBC driver is used by TADDM. TADDM 7.2 may have worked 'OK' with the incorrect Oracle 11 JDBC driver, however TADDM 7.2.1 will not. As such, TADDM 7.2 users migrating to 7.2.1 who fail to update their driver will run into problems.
The correct JDBC drivers are listed in the following table, from the TADDM Install Guide, Chapter 2 Planning for Installation -> TADDM server requirements -> Database server software requirements: