anchor.diff:  public class Endpoint {
   
       @ResponseStatus(201)
  -    @ResponseHeader(name = "X-FroMage", value = "Camembert")
  +    @ResponseHeader(name = "X-Cheese", value = "Camembert")
       @GET
       public String hello() {
           return "Hello, World!";
  
positive.code:     }
  }
  
  @Path("fromages/{fromage}")
  public class Endpoint {
  
      @Inject
  
negative.code: import javax.ws.rs.NotFoundException;
  import javax.ws.rs.Path;
  
  @Path("cheeses/{cheese}")
  public class Endpoint {
  
      @GET
      public String findCheese(String cheese) {
          if(cheese == null)
              // send a 400
              throw new BadRequestException();
          if(!cheese.equals("camembert"))
              // send a 404
              throw new NotFoundException("Unknown cheese: " + cheese);
          return "Camembert is a very nice cheese";
      }
  }
  