handleException details

[saasira]

How can I get printstacke trace if we use seam declarative exception handling. Can we make seam exception handling to route to some bean instead of error page like in struts ?

[nickarls]

The exception should be available in org.jboss.seam.handledException, you should be able to get the full stack trace from there.

[nickarls]

Meaning that you should be able to forward to a page that uses a bean that injects the exception and then generates a String from the stacktrace.

[saasira]

How it injects the exception? Could you please give some example.
I have something like this


<end-conversation/>
<redirect view-id="/error.seam">
Unexpected error: #{org.jboss.seam.handledException.getMessage()}

[pmuir]

@In Exception handledException;

[saasira]

Hi,

@In is throwing exception as below


ExceptionFilt E org.jboss.seam.web.ExceptionFilter doFilter exception root cause
org.jboss.seam.RequiredException: @In attribute requires non-null value: errorbean.handledException

[nickarls]

Then make in non-required. Depending on the scope and how/where the bean is referenced, it might be created even when there was no error...

[saasira]

Exception that I injected was null.
But I could get that exception as

Exception excp= (Exception)Contexts.getConversationContext().get("org.jboss.seam.handledException");
if (excp != null && excp instanceof Exception) {
System.out.println("error" + excp.getClass().getName());
excp.printStackTrace();

but printStacjTrace doesnt print anything now. But esxception class name is proper.