Annotation used to identify other annotations as a WebServiceFeature.

Each WebServiceFeature annotation annotated with this annotation MUST contain an enabled property of type boolean with a default value of true.

Jakarta XML Web Services defines the following WebServiceFeature annotations (Addressing, MTOM, RespectBinding), however, an implementation may define vendors specific annotations for other features.

Annotations annotated with WebServiceFeatureAnnotation MUST have the same @Target of WebServiceRef annotation, so that the resulting feature annotation can be used in conjunction with the WebServiceRef annotation if necessary.

If a Jakarta XML Web Services implementation encounters an annotation annotated with the WebServiceFeatureAnnotation that it does not recognize/support an error MUST be given.