If a nonconformant Fast Infoset encoded SOAP message is sent to a JAX-RPC service then the service will correctly fault in response. However, subsequent conformant Fast Infoset encoded SOAP messages sent to the same service or a service deployed using the same JAX-RPC runtime may fault incorrectly.
The following workarounds are possible:
Disable Fast Infoset support on clients so that only XML encoded SOAP messages are sent.
Restart the container deploying the services so that conforming Fast Infoset encoded SOAP messages can be sent.