JNDI lookup fails - No such domain/application

Question

Hi,
I tried to perform a JNDI lookup from a stand alone Java client towards Oracle 9iAS version 9.0.3 and failed with the following error:
javax.naming.NamingException: Lookup error: javax.naming.AuthenticationException: No such domain/application: mindejb; nested exception is:
     javax.naming.AuthenticationException: No such domain/application: mindejb
     java.lang.Object com.evermind.server.rmi.RMIContext.lookup(java.lang.String)
          RMIContext.java:134
     java.lang.Object javax.naming.InitialContext.lookup(java.lang.String)
          InitialContext.java:345
     void Samplecom.mind.ejb.stubs.AccountComplexStubClient.main(java.lang.String[])
          AccountComplexStubClient.java:21
Below, are the JNDI settings I am using. The application by the name mindejb was deployed and is accessible using server side JSP or servlets. When I use a stand alone OC4J, the same settings (different port) work fine!
java.naming.factory.initial=com.evermind.server.rmi.RMIInitialContextFactory
java.naming.provider.url=ormi://localhost:3101/mindejb
java.naming.security.principal=admin
java.naming.security.credentials=admin
Thanks,
Avi

Answer 1

When you are running within an Oracle Application Server managed OC4J environment, then you should use the OPMN protocol loader we have that will insulate you from the specified ORMI port being used by OC4J.
The OPMN port is fixed so you can always rely on it, whereas the specific ORMI port used by an OC4J instance changes depending on the startup sequence, the number of procs configured, etc.
Here's a piece from the EJB documentation
http://download-west.oracle.com/docs/cd/B14099_19/web.1012/b15505/access.htm#i1019709
Location
All ports, including the RMI port, are dynamically set by OPMN when each OC4J instance starts. When you specify the following URL in the client JNDI properties, the client-side OC4J retrieves the dynamic ports for the instance, and chooses one from the list for communication.
java.naming.provider.url= opmn:ormi://<opmn_host>:<opmn_port>:<oc4j_instance>/<application-name>
The OPMN host name and port number is retrieved from the opmn.xml file. In most cases, OPMN is located on the same machine as the OC4J instance. However, you must specify the host name in case it is located on another machine. The OPMN port number is optional; if excluded, the default is port 6003. The OPMN port is specified in opmn.xml.
cheers
-steve-