code: public static boolean isProvider(ClassInfo classInfo) {
          AnnotationInfo annotationInfo = classInfo.getAnnotation(JaxWsConstants.WEB_SERVICE_ANNOTATION_NAME);
          if (annotationInfo == null) {
              annotationInfo = classInfo.getAnnotation(JaxWsConstants.WEB_SERVICE_PROVIDER_ANNOTATION_NAME);
              if (annotationInfo != null) {
                  return true;
              }
          }
          return false;
      }
docs: Judge if is a Web Service Provider.
  
  @param classInfo
  @return