When a JAX-WS client is invoked inside an endpoint, the endpoint's MessageContext is bumped out of the ThreadLocal and is not replaced at the end of the client call. This makes the MessageContext unavailable to endpoints after they make any JAX-WS invocation.
CXF was pulled out from CP03. Moving to CP04
Verified with 6.2.4.CP.CR1 Reproducers from customer portal case used.