In general, RPC is specified at deployment in the weblogic-webservices.xml file containing <webservice-type>JAXRPC</webservice-type>. Additionally, a webservices.xml will exist describing jaxrpc-mapping. Currently OEPE does not support JAX-RPC, and the deployments I have tested specify that they are JAX-WS in the admin console against wls 10.3.5.
Project: What is the Project Type? What facets are enabled on your project?
Deployment: Are you performing a run-as run-on-server from the java web service file?
I don't have weblogic-webservices.xml, webservices.xml file. Project is web service project. It has Dynamic web module, java annotation processing, weblogic web app ext, weblogic web service, weblgic web service client. These are the facets when I create the project. I didn't add any extra manually. For deployment, my project is part of the ear, so I just deploy the whole application and then I checked admin console.