docs: @Override
      public Exception
                      mapCSITransactionRolledBackException(EJSDeployedSupport s, CSITransactionRolledbackException ex)
                                      throws com.ibm.websphere.csi.CSIException
      {
          //d180095
          // Ensure root is set before doing the mapping.
          if (s.rootEx == null)
          {
              s.rootEx = ExceptionUtil.findRootCause(ex);
          }
  
          Exception mappedEx = mapException(s, ex);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "MappedException = " + mappedEx);
          }
          // set the stack trace in CORBA exception to the exception stack for
          // the root cause of the exception.
          mappedEx.setStackTrace(s.rootEx.getStackTrace());
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "returning: " + mappedEx); //150727 d402055
          }
          return mappedEx;
      }