I'm trying to lookup a jndi datasource in Tomcat 4.0b7 but I must be missing something. I'm able to view the bindings but I get an error trying to instantiate the datasource. How do I specify the factory and what value should I use to instantiate the Oracle DataSource class? I am able to view the bindings successfully with: Context initCtx = new InitialContext(); Context theComponentContext = (Context) initCtx.lookup ("java:comp/env"); NamingEnumeration enum2 = theComponentContext.listBindings("jdbc"); while (enum2.hasMore()) { Binding binding = (Binding) enum2.next(); out.println("Name: " + binding.getName()); out.println("Type: " + binding.getClassName()); out.println("Value: " + binding.getObject()); out.println(); } In my server.xml, I have: <Resource name="jdbc/oradb7" auth="SERVLET" type="javax.sql.DataSource"/> <ResourceParams name="jdbc/oradb7"> <parameter><name>user</name><value>test</value></parameter> <parameter><name>password</name><value>test</value></parameter> <parameter><name>driverClassName</name> <value>oracle.jdbc.driver.OracleDriver</value></parameter> <parameter><name>driverName</name> <value>jdbc:oracle:thin@localhost:1521:ORADB7</value></parameter> </ResourceParams> In the web.xml file of my context I have a valid reference to the resource: <resource-ref> <res-ref-name>jdbc/oradb7</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>SERVLET</res-auth> </resource-ref>