Struts Message and Error

   

 ActionErrors errors = new ActionErrors();
    errors.add(ActionErrors.GLOBAL_ERROR, new ActionError(
      "errors.previousSubmissionIsStillOnGoing"));
    saveErrors(request, errors);





 ActionMessages messages = new ActionMessages();
     messages.add( ActionMessages.GLOBAL_MESSAGE, 
      new ActionMessage( "DELETEFILE_DOCUMENT_ERROR" ) );
     saveMessages( request, messages );