Unable to access web service deployed in JBoss EAP 7.2.0

Team,

I have deployed a web service in JBoss EAP 7.1.0 and its working perfectly fine. However when I am trying to deploy the same web service in EAP 7.2.0, I am getting some error as below -

ERROR [io.undertow.request] UT005023: exception handling request to: /xxxserviceweb/services/xxWS: java.lang.AbstractMethodError

Can someone please help to identify the root cause of the issue.
Attaching the error log for the reference.

Thank you.

Reagrds,
Mano