WebLogic 12c - Destination unreachable exception

Question

First, I had installed jdk 1.6.0_43 and oracle weblogic 12.1.1, I was successfully able to deploy my application.

I then upgraded both my jdk (1.7.0_60) and weblogic (12.1.2), but was unable to deploy my application.

Now, I downgraded my weblogic (12.1.1) but retained my jdk 1.7.0_60, but i was still not able to deploy my application successfully.

In both the failure cases, I got the same error with the following message. Is there something with respect to java 7 I should be aware of? I tried searching for this a lot, but in vain..

 [exec] javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://localhost:9991: Destination unreachable; nested exception is: 
 [exec] java.net.ConnectException: Connection refused: connect; No available router to destination]

Answer 1

No available router to destination -- Means you do not have a service running to listen on localhost:9991

Go to admin console, check the servers which should be listening on 9991 is up and running. I am sure it is not running.