@SchemaValidation inoperant

Hello,

I have contract-first jax-ws web services in which validation rules have been defined in WSDL. Using invalid SOAP payloads with SoapUI, the services aren't return faults but responses as if the payload was correct. The validation rules seem to be ignored. Is something else required in addition to simply annotated the SEI with @SchemaValidation ?

Many thanks in advance,
Nicolas