What do you mean with this?

Where is the exception converted to a JasperException?

If you throw and exception and does not handle it I guess it would be reasonable to have it converted to a JasperException.

Or do you mean that
<%
try {
// ...
myBean.callExceptionMethods(...) ;
// ...
} catch (MyException me) {
// handle
}
%>

Fails to catch your exception?

Ok, I see what you mean now.

I assume that your bean throws the exception in its constructor since it occurs during the jsp:useBean.

You might try to cast the exception in your error page to JasperException (or ServletException) and call getRootCause() on it and see if you get your original exception back. (I think it should work, but has not checked.)

> I have JavaBean (not EJB). I'm using this bean in
> JSP
> <jsp:useBean id="loader"
> class="com.rteasset.JspLoader" scope="session"/>.
> If I throw my exception in this bean, the ErrorPage
> I'm using with my JSP show not the exception I throw
> but org.apache.jasper.JasperException.