I have a fix for this issue...
Apparently there is a known defect for JMX null node issue which was NOT generating metrics if JMSDestination was not available in the JMS header.
The 2 jar files supplied to me as a part of the hot fix (2HF29_DE337981)
Agent.jar
Backendprotocols.jar
Copy "Agent.jar" file to 'wily' dir (renaming the old one to something else)
Copy "Backendprotocols.jar" file to 'wily/core/ext' dir (renaming the old one to something else)
Restart the app server.
After restarting the app server, you should see the following entry showing "Build 992900"
5/14/18 05:25:04 PM EDT [INFO] [IntroscopeAgent.Agent] Agent Release 10.5.2.78 (Build 992900)
This resolves the "null" metrics issue.
Thanks jAmEs_shIn & huaba01
Hallett_German - Please mark this reply as "Correct Answer"