jsp:useBean ClassCastException

[Reginald Law]

I have a jsp where I use jsp:useBean. I only get the exception in the JSP after I try to update the bean in the session data (in a struts action class). Should beans only be read only, set up once never to be changed ?

I am getting this error on Jrun4.

If I initialize the bean with some initial values things work fine. It is only after I do an update to the session data that I get the error.

Now I see why sun came up with the ejb session beans. You know they work and they are reliable.

Are their undocumented scope restrictions on the jsp:useBean tag ? What application servers does this work best with.

[Nathaniel Stoddard]

You're going to need to give some more info on this. Where exactly are you getting the casting exception, etc. Maybe post the code in question.

[Bear Bibeault]

There are no weird restrictions. You are probably just casting the bean incorrectly somehwere. As pointed out, more info would be needed for further diagnosis.

[Reginald Law]

I found the problem. I was using the wrong class indeed. The session.setAttribute does work.