http://www.dropwizard.io/1.3.16/dropwizard-jersey: Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web applications.
  • Coda Hale
  • Nick Telford
  • Graham O'Regan
  • Ryan Kennedy
  • Camille Fournier
  • Carlo Barbara
  • Matt Veitas
  • Ryan Tenney
  • Jochen Schalanda
  • Glenn McAllister
  • Nick Babcock
  • Justin Plock
  • Artem Prigoda 
package io.dropwizard.jersey.optional;

import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;


The default response when an empty optional is returned, is to respond with
a 404 NOT FOUND response.

/**
 * The default response when an empty optional is returned, is to respond with
 * a 404 NOT FOUND response.
 */
public class EmptyOptionalExceptionMapper implements ExceptionMapper<EmptyOptionalException> {
    @Override
    public Response toResponse(EmptyOptionalException exception) {
        return Response.status(Response.Status.NOT_FOUND).build();
    }
}