Open: make formData static
@@ -1046,7 +1046,7 @@ public class Open extends OkHttpBaseApi implements OpacApi {
* null
* @return A MultipartEntityBuilder containing the data of the form
*/
- protected MultipartBody.Builder formData(FormElement form, String submitName) {
+ protected static MultipartBody.Builder formData(FormElement form, String submitName) {
MultipartBody.Builder data = new MultipartBody.Builder();
data.setType(MediaType.parse("multipart/form-data; charset=utf-8"));
