Question

I’ve encountered a strange thing. I have configured exception handling in struts 2.1.8 like stated here, only that I redirect to an action instead to JSP (to send emails…).

So, in the action I have

ActionContext ac = ActionContext.getContext();
String stackTrace = null;
if(ac.getValueStack().findValue("exceptionStack") != null) {            
    stackTrace =  ac.getValueStack().findValue("exceptionStack").toString();
} else {
    stackTrace = "Stack trace not found!";
}

I had to make this if-else because sometimes the value is null. I haven’t found the difference why sometimes I get the stack trace and sometimes I don’t. All the errors happen in Struts2.

Did anyone had similar problem? Can anybody directs me where is the problem?

Answer 1

if you map exception with chain result type you’ll keep the same request and so the same ValueStack.