JBossDeveloper

ive actually found the problem here, as it happened with another seam CRUD generated project on jboss 5 which previously was running fine. 

I initially get a problem with looking up entity manager in components.xml

<persistence:managed-persistence-context name="entityManager" auto-create="true"
                      persistence-unit-jndi-name="@puJndiName@"/>

i would amend this to:

<transaction:entity-transaction entity-manager="#{entityManager}"/>

   <persistence:managed-persistence-context name="entityManager" auto-create="true"
                      persistence-unit-jndi-name="java:/EbusinessHibernateEntityManagerFactory"/>

and remove 

<persistence-unit-ref>

element from web.xml.

in my persistence.xml i have set the  hibernate property

 <property name="jboss.entity.manager.factory.jndi.name" value="java:/EbusinessHibernateEntityManagerFactory"/>

When i deploy on weblogic/jboss i got the browser error on firefox The page isn't redirecting properly

This was working before so i knew it had to be the change to entity manager. So if i remove the line

<transaction:entity-transaction entity-manager="#{entityManager}"/>

it works now!