docs: private TransactionManager getTransactionManager()
      {
          TransactionManager retval = null;
          try
          {
              if (log.isDebugEnabled()) log.debug("getTransactionManager called");
              retval = TransactionManagerFactoryFactory.instance().getTransactionManager();
          }
          catch (TransactionManagerFactoryException e)
          {
              log.warn("Exception trying to obtain TransactionManager from Factory", e);
              e.printStackTrace();
          }
          return retval;
      }