in continuation to the question from last week: http://stackoverflow.com/questions/2828237/problem-configure-jboss-to-work-with-jndi

I'm trying to bind datasource in JBoss and use it in my application. In my struggling, I already managed to avoid the javax.naming.NameNotFoundException by:
1. using in java new InitialContext().lookup(connection);
instead of new JndiObjectFactoryBean().setJndiName(connection);
2. changing the connection name from: 'jndi-name' to 'java:jndi-name'

Now the problem is that the datasouce that I get from the lookup is null. I created the datsource file:

 <datasources>  
   <local-tx-datasource>
    <jndi-name>bilby</jndi-name>
    <connection-url>jdbc:oracle:myURL</connection-url>
    <driver-class>oracle.jdbc.OracleDriver </driver-class>
    <user-name>myUsername</user-name>
    <password>myPassword</password>        
    <exception-sorter-class- name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>

            <metadata>
         <type-mapping>Oracle9i</type-mapping>
      </metadata>   
</local-tx-datasource>

</datasources>

and put it under \server\default\deploy\oracle-ds.xml
I get during runtime the line:

18:37:56,560 INFO [ConnectionFactoryBindingService] Bound ConnectionManager 'jb oss.jca:service=DataSourceBinding,name=bilby' to JNDI name 'java:bilby'

So my question is - why do I get null as my datasource???