I have run the following code which sends a REST request to the mashape imgur API

import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.core.Response;

import com.fasterxml.jackson.databind.JsonNode;
import com.jivecake.api.serializer.JsonTools;

public class ImgurTest {
    @org.junit.Test
    public void gallery() {
        String url = String.format("https://imgur-apiv3.p.mashape.com/3/account/me");

        Response response = ClientBuilder.newClient()
            .target(url)
            .request()
            .header("X-Mashape-Key", "key_hidden")
            .header("Authorization", "Client-ID client_id_hidden")
            .header("Content-Type", "application/x-www-form-urlencoded")
            .header("Accept", "application/json")
            .buildGet()
            .invoke();
        String content = response.readEntity(String.class);

        System.out.println(content);
    }
}

and I received the following response for this REST request

{
  "data" : {
    "error" : "Unable to find account username, me",
    "request" : "/3/account/me/images",
    "method" : "GET"
  },
  "success" : false,
  "status" : 404
}

The API documentation purports that “me” can be used for the currently authenticated account here: https://api.imgur.com/endpoints/account#current

Why does the above REST request not work?

Note that the mashape key and client ID are valid but are obscured but for the purposes of submitting this ticket.