code: private static JSONObject parseStencilSet(StencilSet stencilSet) throws JSONException {
          if (stencilSet != null) {
              JSONObject stencilSetObject = new JSONObject();
  
              stencilSetObject.put("url",
                                   stencilSet.getUrl().toString());
              stencilSetObject.put("namespace",
                                   stencilSet.getNamespace().toString());
  
              return stencilSetObject;
          }
  
          return new JSONObject();
      }
docs: Delivers the correct JSON Object for the Stencilset
  
  @param stencilSet
  @throws org.json.JSONException