NamingException when trying to lookup DataSource (Oracle)

Question

I am using Sun 6.1 Web Server with Oracle 9i, and we are evaluating these products (so no support contract).
I have a connection pool configured as follows:
<RESOURCES>
<JDBCCONNECTIONPOOL name="foo_pool" datasourceclassname="oracle.jdbc.pool.OracleDataSource" steadypoolsize="8" maxpoolsize="32" poolresizequantity="2" idletimeout="300" maxwaittime="60000" connectionvalidationrequired="on" connectionvalidationmethod="meta-data" validationtablename="" failallconnections="off" transactionisolationlevel="read-committed" isolationlevelguaranteed="off">
<PROPERTY name="URL" value="jdbc:oracle:thin:@XX.XX.XX.XXX:1521:oracledv"/>
<PROPERTY name="User" value=" . . . "/>
<PROPERTY name="Password" value=" . . . "/>
</JDBCCONNECTIONPOOL>
<JDBCRESOURCE jndiname="jdbc/foo_pool" poolname="foo_pool" enabled="on"/>
</RESOURCES>
Of course the user and password values are filled in.
The foo_pool object is there within the JDBC context, and the class of the object as reported by listBindings is javax.sql.DataSource.
I am trying to lookup the DataSource from a JSP deployed within a web app.
However, I am getting a NamingException with the explanation "cannot create resource instance". The cause and rootCause Throwable fields of this NamingException are null (big help that is).
The line that causes the exception is the one that invokes lookup on the "jdbc" sub context, with the parameter "foo_pool".
I have set up JDBC connection pools to Oracle in the past using WebLogic and JBoss, so I am at least somewhat competent at this. Still somehow I get the feeling that some class is missing, or there is an attempt to instantiate the wrong class or an incompatible class, but since there is no information beyond "cannot instantiate" I have no idea where else to look, after having googled until I am blue in the face.
Can anyone help?
Thanks,
Erik

Answer 1

Does this help?
http://swforum.sun.com/jive/thread.jspa?forumID=16&threadID=24492