Hi,
I've been using struts for a while, now, and my system is deployed on
jboss+tomcat. Until version 4.0.1, JBoss came with Tomcat 5.0.x
embedded, but with 4.0.2, Tomcat was upgraded to 5.5.x, and I started
having a strange problem. It manifests itself as this exception:
java.lang.ClassCastException: org.apache.struts.validator.BeanValidatorForm
Now, this happens when I typecast the "form" parameter in the "execute"
method to my own ActionForm bean:
MyActionForm maf = (MyActionForm)form;
BTW,
public class MyActionForm extends AbstractMyActionForm
public abstract class AbstractMyActionForm extends ActionForm
Debugging the code reveals that at the offending line, "form" is of type
BeanValidatorForm, that has a field "dynaClass" of type "WrapDynaBean",
that has a field "instance" of type MyActionForm.
Now, my application is packaged as an ear file, which contains an
ejb-jar and a war, where the Action class exists. On closer inspection,
I find out that the problem is related to the fact that I package
AbstractMyActionForm in the ejb-jar. If I change my structure (for
testing purposes) so that it is packaged in the war instead, the problem
goes away. Unfortunatelly that is not possible in the real application.
Note: if I have the class on both ejb-jar and war files, the problem
still occurs.
I suspect the problem is related to the ClassLoader, but, as the debug
session shows, the abstract class is eventually found by the classloader
(since the "instance" variable of WrapDynaBean contains a valid instance
of the class).
Any hints?
Just to repeat myself: this works fine under JBoss 4.0.1/Tomcat 5.0.x
Zorzella
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
