persisting entity in JSF action method rsults in exception "unknown entity ..."

[jmoreira]

i'm testing seam and developing a simple registration form:

UserHome.java:

@Name("userHome")
@Scope(ScopeType.CONVERSATION)
public class UserHome extends EntityHome<User> {

        @Factory("user")
        public User initPerson() {
                return getInstance();
        }
}

RegisterActionBean.java

@Stateless
@Name("registerAction")
public class RegisterActionBean implements RegisterActionLocal {

        @In(required=false) UserHome userHome;

        /**
         *
         * @return
         */
        public String register() {
                return userHome.persist(); // exception here
        }
}

but i'm getting:
javax.ejb.EJBTransactionRolledbackException: Unknown entity: com.tradestr.model.accounts.User

if i instead inject @PersistenceContext directly it works:

@Stateless
@Name("registerAction")
public class RegisterActionBean implements RegisterActionLocal {

        @In(required=false) UserHome userHome;

        @PersistenceContext
        EntityManager entityManager;
        /**
         *
         * @return
         */
        public String register() {
                entityManager.persist(userHome.getInstance());
        }

what am i doing wrong?

[jmoreira]

Sorry bad formating.

i'm testing seam and developing a simple registration form:

UserHome.java:

@Name("userHome")
@Scope(ScopeType.CONVERSATION)
public class UserHome extends EntityHome<User> {

     @Factory("user")
     public User initPerson() {
          return getInstance();
     }
}

RegisterActionBean.java

@Stateless
@Name("registerAction")
public class RegisterActionBean implements RegisterActionLocal {

     @In(required=false) UserHome userHome;

     /**
      * 
      * @return
      */
     public String register() {
          return userHome.persist(); // exception here
     }
}

but i'm getting:
javax.ejb.EJBTransactionRolledbackException: Unknown entity: com.tradestr.model.accounts.User

if i instead inject @PersistenceContext directly it works:

@Stateless
@Name("registerAction")
public class RegisterActionBean implements RegisterActionLocal {

     @In(required=false) UserHome userHome;

     @PersistenceContext
     EntityManager entityManager;
     /**
      * 
      * @return
      */
     public String register() {
          entityManager.persist(userHome.getInstance());
     }

what am i doing wrong?