code: public static boolean isJerseyContract(Injectee injectee) {
      Type type = injectee.getRequiredType();
      return isContact(type, org.glassfish.jersey.spi.Contract.class);
    }
docs: Returns {@code true} if the {@link Injectee} has a Jersey SPI
  {@link org.glassfish.jersey.spi.Contract} annotation.
  
  @see org.glassfish.jersey.spi.Contract