Questions Tagged With exceptionhandling

multiple exceptions lead to ivy:error:loop

Adrian Imfeld — Wed, 11 Dec 2019 09:41:15 -0500

Hi there

We get an "ivy:error:loop" exception by Ivy in a loop. In this loop, we send some ws calls in a Callable Sub. Possibles exceptions are not handled in the Callable Process, but are caught by a "Inscribe Error Boundary Event" on the Callable Sub Element. The loop-exception occurs when we receive an exception (ivy:error:webservice:exception) in this Callable Sub twice.

From our point of view one task could easily receive more than one identical exception during its execution. Ivy should not send a loop-exception in this case.

Why does Ivy react like that? Have we done something wrong?
Is there a solution or workaround for our problem?

Runtime Exception Handling

Tung Dong — Thu, 18 Oct 2018 23:10:27 -0400

Hi IvyTeam,

Currently i used ErrorStartEvent to catch exception in the Html Dialogs, this the good way to handle exception, i could catch every exception, thanks for support. However my project has a lot Html Dialogs, is there way to to create java class to listen the exception? it mean when the server starting then this class listen every exception.

thanks, Tung Dong

Problem with handling exception by AjaxExceptionHandler

tam_nguyenvan — Wed, 08 Aug 2018 02:39:32 -0400

Hi all,

I faced a problem when trying to use AjaxExceptionHandler as follow link: https://www.primefaces.org/showcase/ui/misc/exceptionHandler.xhtml that the implicit object pfExceptionHandler was not updated automatically when exception occured. Even if I have tried with AjaxExceptionHandler in managed bean.

Like this:

AjaxExceptionHandler aeh = new AjaxExceptionHandler();
aeh.setType("ch.ivyteam.util.IvyRuntimeException");
aeh.setUpdate("exceptionInfo");
aeh.setOnexception("updateExceptionInfo();");

FacesContext context = FacesContext.getCurrentInstance();
context.getApplication().evaluateExpressionGet(context, "#{pfExceptionHandler}", ExceptionInfo.class);

but the exception content still not updated.

Does any body experienced with this?

Thanks, Tam Nguyen

How to get root cause of BpmException

trungdv — Wed, 07 Dec 2016 12:05:02 -0500

Hi all

In the exception handling of new ivy (6.0) we have a new term that is BpmError, i'm catching it but now i want to know what is the rootcause of that exception, so how can i get it from BpmError. Here is the stacktrace of exception:

The read box is the root cause actually that i want to get it out.

Is there any way?

Thanks

Runtime Exception Handling

Florian Heinrich — Fri, 30 Oct 2015 15:19:35 -0400

Hello ivy-team, is it possible to handle unexpected Exceptions like RuntimeExceptions? For example, we would like to send an email with all exception information to our developer team and display a specific error message. We would like to display this message in the current user dialog (JSF) and not redirect to an other error page. I tried to create a CustomExceptionHandlerFactory and set this class as exception-handler-factory in the faces-config.xml. Doing this in the Project webContent/WEB-INF/faces-config.xml has no effect. Doing this in the Designer webapps/ivy/WEB-INF/faces-config.xml throws a ClassNotFoundException. Could you please explain how to do this or is there a nicer way?

Login page on Process Start with http-request link and 'Only wf users' set to true

tiago — Thu, 15 Oct 2015 10:37:30 -0400

Is there a way to configure a process start with a http link to show the login page if the caller is not logged in?

I defined the JsfWorkflowUi as 'Default Pages Implementor' but this didn't worked. Creating a process with a DefaultLoginPage.ivp start step didn't worked to.

Do I need to catch the 'Role Violation Exception' and redirect to a login page?

How can I configure a special error page for a certain exception

Reto Weiss — Fri, 09 Jan 2015 08:33:36 -0500

I want to configure a error page that is shown if a certain exception occurs in Axon.ivy. How can I do that?

Exception Handling: How to get the error message

Björn — Mon, 11 Nov 2013 16:04:06 -0500

How can I access the exception message in a exception start process element?

Original Question (in German only):

Ich versuche für unsere Studierenden (Unterricht an der ZHAW) eine möglichst generische Fehlerbehandlung aufzuzeigen. Folgendes schwebt mir vor:

Siehe erstes Bild. Pro Prozess füge ich einen Pool 'Fehlerbehandlung' (1) mit einem Lane pro Fehlerquelle hinzu (z.B. 'DB Step Exception) (2)
In diesem Lane gibt es ein Exception Start-Element (3)
Innerhalb des Prozesses kann ich nun überall dieses Start-Element als Exception Handling verwenden, wo es passt (4, 5, 6)
Das Exception Handling selbst soll zunächst einmal darin bestehen, eine aussagekräftige Fehlermeldung anzuzeigen. Hierfür habe ich einen prozessübergreifenden Subprozess 'DisplayErrorPage' erzeugt (zweites Bild)
Innerhalb dieses Subprozesses möchte ich nun in Abhängigkeit des aufgetretenen Java-Fehlers (siehe zum Beispiel drittes Bild) über eine unterschiedliche Fehlermeldung reagieren. Zu diesem Zweck müsste ich aber programmatisch irgendwie auf die Error Message (z.B. drittes Bild) zugreifen können. Wie kann ich dies bewerkstelligen? Ich vermutete zunächst, dass dies ein Objekt in der ivy-Hierarchie ist, fand aber nichts.

Ich wäre sehr froh um eine Antwort bis 13.11. 12 Uhr, damit ich rechtzeitig ein Video für die Studierenden erstellen kann.