add(form); form.add(new HiddenField<String>("url", new PropertyModel<>(model, "requestUrl"))); form.add(new TextArea<>("body", new PropertyModel<>(model, "requestBody")));
add(form); form.add(new HiddenField<String>("url", new PropertyModel<>(model, "requestUrl"))); form.add(new TextArea<>("body", new PropertyModel<>(model, "requestBody")));