Github user sberyozkin commented on the issue:
https://github.com/apache/cxf/pull/309
I'm not sure if users actually have ever tried to extend these classes, we
can ask at the CXF users for example if someone has tried it...Can you please
try to do another PR but based on updating the protected methods, or may be you
can find a way to pass that extra parameter as a new message property, example,
Message.PAYLOAD_ENCODING, or similar ? thanks---
