proxy-client not jax-rs spec. compliant in how it determines entity parameter when @Context parameter is present

When @Context annotated parameter follows the entity parameter, proxy client fails to identify it as not-entity and replaces the actual intended entity with its contents. Jax-rs spec section 3.3.2.1 says any parameter not annotated with annos in 3.2 is the entity. 3.2 includes @Context. WebResourceFactory.PARAM_ANNOTATION_CLASSES does not include @Context, which causes WebResourceFactory#hasAnyParamAnnotation to function improperly.