Property Editor not registered with the PropertyEditorManager

Question

I´m trying to integrate a fully working jsf 1.1 application into JBoss 4.2.2 which uses jsf 1.2 which isn´t that compatible at all.
I just have one implementation of the jsf-libs and not any in the application war.
"ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[samigo].[jsp]] Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to convert string "#{authorFrontDoorMessages.auth_front_door}" to class "javax.el.ValueExpression" for attribute "value": Property Editor not registered with the PropertyEditorManager".
And yes, i have been searching a lot on google and read a lot of the article and forum threads but i haven´t been able to solve this.
I have been struggling with this problem more than a week now, so please give me a tip on what the problem might be.
Any idea?

Answer 1

You shouldn't have any appserver specific libraries in WEB-INF/lib (covered by the webapp's default classpath). Further on the appserver/lib (covered by the appserver's default classpath) should only contain appserver specific libraries and at highest 3rd party libraries which are going to be shared among all webapps. Finally you should NOT have added or modified anything in the jdk/lib (covered by the runtime's default classpath).
So in case of a default and unmodified environment everything should just work flawlessly. In your specific case it seems that you've unnecessarily added/copied appserver specific libraries in the WEB-INF/lib or that you have duplicated EL libraries from (another) appserver in the appserver/lib or maybe -more worse- in the jdk/lib.