how can i return response status 405 with empty entity?

Question

How can i return response status 405 with empty entity in java REST?

@POST
@Path("/path")
public Response createNullEntity() {
    return Response.created(null).status(405).entity(null).build();
}

It returns status code 405, but the entity is not null, it is the http page for the error 405.

Answer 1

When you return an error status, Jersey delegates the response to your container's error processing via sendError . When sendError is called, the container will serve up an error page. This process is outlined in the Java Servlet Specification §10.9 Error Handling.

I suspect what you are seeing is your container's default error page for a 405 response. You could probably resolve your issue by specifying a custom error page (which could be empty). Alternatively, Jersey won't use sendError if you provide an entity in your response. You could give it an empty string like this:

@POST
@Path("/path")
public Response createNullEntity() {
  return Response.status(405).entity("").build();
}

The above results in Content-Length of 0