gistfile1.txt

@Type("nodes")
public class Node {

    // other fields

    @Id
    private String id;

    @Relationship(value = "root", resolve = true)
    private Node root;

// Getters and Setters

}

public class TestClient {
    @Test
    public void testFoo() throws Exception {
    
    // blah blah
    
        ResourceConverter converter = new ResourceConverter(objectMapper, Node.class);
        converter.setGlobalResolver(relUrl -> {
            com.squareup.okhttp.Call req = client.newCall(new Request.Builder().url(relUrl).build());
            try {
                return req.execute().body().bytes();
            } catch (IOException e) {
                throw new RuntimeException(e.getMessage(), e);
            }
        });
        JSONAPIConverterFactory converterFactory = new JSONAPIConverterFactory(converter);
        
    // blah blah
    }
}

// The JSON relattionship object
"root": {
                "links": {
                    "related": {
                        "href": "http://osf:8000/v2/nodes/mrusa/",
                        "meta": {}
                    }
                }
            }