JBossDeveloper

I think in component.xml you should have something like this:

<core:init jndi-pattern="java:comp/env/#{ejbName}" debug="true"/>

<persistence:managed-persistence-context name="entityManager" auto-create="true" entity-manager-factory="#{<choose a name here>}"/>
<persistence:entity-manager-factory name="<same name as above>" persistence-unit-name="<name of your persistent unit as in persistence.xml here>" />

Also did you follow instructions as stated in the link I mentioned previously? You should review also this thread which is mentioned in the previous thread and explain things about JNDI name resolutions in WAS (additions to web.xml, usage of @JndiName annotation, seam-jndi.properties file etc...)

Same problem but with Hibernate.

my persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!-- Persistence deployment descriptor for dev profile -->
<persistence xmlns="http://java.sun.com/xml/ns/persistence" 
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" 
             version="1.0">
             
   <persistence-unit name="sptweb">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:comp/env/jdbc/sptwebDatasource</jta-data-source>
      <!-- The <jar-file> element is necessary if you put the persistence.xml in the WAR and the classes in the JAR -->
      <!--
      <jar-file>../../vehicles.jar</jar-file>
      -->
      <properties>
            <!--property name="transaction.flush_before_completion" value="true"/-->
           <property name="connection.release_mode" value="after_statement"/>
           <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.WebSphereExtendedJTATransactionLookup"/>
           <property name="transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/>
           <property name="connection.datasource" value="java:/bookingDatasource"/>
         <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
         <!--property name="hibernate.hbm2ddl.auto" value="update"/-->
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
         <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider"/>
      </properties>
   </persistence-unit>
    
</persistence>

my components.xml

<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
            xmlns:core="http://jboss.com/products/seam/core"
            xmlns:persistence="http://jboss.com/products/seam/persistence"
            xmlns:security="http://jboss.com/products/seam/security"
            xmlns:transaction="http://jboss.com/products/seam/transaction"
            xmlns:web="http://jboss.com/products/seam/web"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation=
                "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.1.xsd 
                 http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.1.xsd  
                 http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.1.xsd 
                 http://jboss.com/products/seam/transaction http://jboss.com/products/seam/transaction-2.1.xsd 
                 http://jboss.com/products/seam/web http://jboss.com/products/seam/web-2.1.xsd 
                 http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.1.xsd">
     
     <core:init jndi-pattern="java:comp/env/sptweb/#{ejbName}" debug="true"/>
     <core:manager concurrent-request-timeout="500" conversation-timeout="120000" conversation-id-parameter="cid" parent-conversation-id-parameter="pid"/>
     
     <persistence:hibernate-session-factory name="sptwebSessionFactory"/>
     <persistence:managed-hibernate-session name="sptwebDatabase" auto-create="true" session-factory-jndi-name="java:/sptwebSessionFactory"/>
     
     <!--transaction:ejb-transaction/-->
     
     <security:identity jaas-config-name="other"/>   

</components>

What's wrong?

Samuele, You have the same problem as...what problem in fact?

FYI, I have committed a few days ago, a rework of the WebSphere v7.0 configuration chapter in the documentation and I also committed changes in the jpa and jee5/booking sample in order to just buid then deploy these sample applications on WAS v7.0.0.3+

In the reworked chapter, I explain how to configure the JNDI components name and their binding in WAS, how to configure SFSB timeout etc...

After being reviewed, this should (will) be in seam 2.2.1.

If You have access to SVN you can download the code from the branches/community/Seam_2_2 seam branch and build seam or, considering that Seam v2.2.1 snapshot is still not yet downloadable, I could send you the pdf and the samples apps in a zip file as a non-official preview