code: public void rollback_only()
      {
          if (tc.isEntryEnabled())
              Tr.entry(tc, "rollback_only");
  
          try
          {
              _transaction.setRollbackOnly();
              _transaction.subRollback();
          } catch (Throwable exc)
          {
              FFDCFilter.processException(exc, "com.ibm.tx.remote.TransactionWrapper.rollback_only", "813", this);
              if (tc.isEventEnabled())
                  Tr.event(tc, "rollback_only caught exception setting coordinator rollback_only", exc);
          }
  
          if (tc.isEntryEnabled())
              Tr.exit(tc, "rollback_only");
      }
docs: ----------------------------------------------------------------------------