Stop the task activity flow programmatically

Question

Hi all,
I'm using ADF Faces 11gR1
I've made a method that i call every time an exception is raised in managed beans. This is a way to show all the runtime exceptions in a dialog without redirect to a default error page. I'm using FacesMessages to show the dialog errors.
But I've a problem/question. If I press a button with ActionListener and Action, and an exception is raised in the method executed by the ActionListener, how can i do to stop the execution of the Action??? It is because the popup informing that an error has been produced, is raised me in the next page, called by the Action.
Here is the code:
1. Press a button that executes this method raising a NullPointerException:
*public void doNullPoiner3(ActionEvent actionEvent) {*
try{
System.out.println("put a message with id");
String s = null;
System.out.println(s.substring(0));
}catch(Throwable th){
CustomExceptionHandler.reportTechnicalException(th,"it1");
2. The code for reportTechnicalException()
*public static void reportTechnicalException(Throwable th, String idField) {*
//retry the customized messages(summary and detail)
//Show the error
addFacesErrorMessage(summary,detail,idField,FacesMessage.SEVERITY_ERROR);
*private static void addFacesErrorMessage(String summary, String msg, String stId, javax.faces.application.FacesMessage.Severity severity) {*
FacesContext ctx = getFacesContext();
FacesMessage fm = new FacesMessage(severity, summary, msg);
String stViewComponentId = (stId!=null && findComponent(stId))?stId:null;
ctx.addMessage(stViewComponentId, fm);
Please, can you help me?? i only want to stop the execution of the task flow if it exists.
Thank you in advance,
XAVI.

Answer 1

Hi,
Have the action listener throw an AbortProcessingException. It's a reserved JSF exception that stop the event propagation without killing the request.
~ Simon