A message body writer for Java class java.util.ArrayList…and MIME media type text/xml was not found

Question

Im using Jersey to build a REST Service and want to return a Collection as XML.

@GET
@Produces(MediaType.TEXT_XML)
@Path(\"/direct         


        

Answer 1

The only thing that worked for me so far is to create my own Wrapper object.

Don't forget the @XmlRootElement annotation to explain JAXB how to parse it.

Note that this will work for any type of object - in this example I used ArrayList of String.

e.g.

The Wrapper object should look like this:

import java.util.ArrayList;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class ArrayListWrapper {
    public ArrayList myArray = new ArrayList();
}

And the REST method should look like this:

@GET
@Produces(MediaType.TEXT_XML)
@Path("/directgroups")
public ArrayListWrapper getDirectGroupsForUser(@PathParam("userId") String userId) {
    try {
        ArrayListWrapper w = new ArrayListWrapper();
        w.myArray = service.getDirectGroupsForUser(userId, null, true);
        return w;
    } catch (UserServiceException e) {
        LOGGER.error(e);
        throw new RuntimeException(e.getMessage());
    }
}