Jersey returns 500 when trying to return an XML response

Question

I\'m trying to create my own RESTful WS application using Jersey 2.12 based from this article. I want to return an XML representation of a class depending on the id been pas

Answer 1

Stuff below is not the answer, but will probably help Johne to find out, whats up.

Out of the comments I've extract, that the main problem is, that you don't have any noticeable debug output in your console. So you are not able to find the issue by yourself, rather than give us some logs which would help to find out, what the exact problem could be.

Therefore pls implement an ExceptionMapper first, which will force console output of the stacktrace:

Example:

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

@Provider
public class HelpMeExceptionMapper implements ExceptionMapper {

    @Override
    public Response toResponse(Exception e) {
        e.printStackTrace();
        return Response
                    .status(Status.INTERNAL_SERVER_ERROR)
                    .type(MediaType.APPLICATION_JSON)
                    .entity(e.getCause())
                    .build();
    }

}

The ExceptionMapper has to be in a subpackage of your resource-config/providers path test.services:

    jersey.config.server.provider.packages
    test.services

As i didn't implement your/vogellas code i would like to recommend you, to debug this step by step to find out whats up.

I reckon, that you miss to import something. But who knows ...

Have a nice day ...