Based on my experience it is good to follow below rules to avoid annoying errors/exception and consequently save your time.
- Do not create a provider by adding weblogic.jar, instead create wlfullclient.jar and then add it as a jar in your provider. From weblogic 10 onwards this is the procedure.
- Preferably create a wlfullclient.jar from the server instance where you want to connect. That way you can avoid any version and class not found issues.
- Note the port of T3 url. It is the listen port under servers on admin console. If you are connecting to a server with soa suite then the server to check is the managed server i.e. soa server. Usually the listen port for soa server is 8001. In this case t3://<hostname>:7001 will not work.
- If a server is behind the firewall then the port needs to be opened in firewall for communication to work properly.
