code: private void propogateError(final Throwable error) {
  		// Unhandled runtime exceptions from action phase
  		// must be remembered for subsequent renders
  		if (getRequest() == null) {
  			LOG.error("Unable to remember error from action phase beyond this request");
  		} else {
  			LOG.debug("Remembering error from action phase");
  			getRequest().setAttribute(ACTION_ERROR_KEY, error);
  		}
  	}
docs: Propogates an error from the action phase to the render phase.
  
  @param error the error to propogate.