Im getting this msg No message body writer has been found for class org.apache.openjpa.kernel.DelegatingResultList, ContentType: application/json
when trying to use Class GroupWebService Method get This is my url http://ip:5080/openmeetings/services/group/?&sid=eed01b74-181a-4cd1-a8d0-fcfd3a220bb6 and this is my rest call config $response = $rest->call( $this->getRestUrl("group") , RestMethod::GET , $this->sessionId , null , null , "List" ); I tried changing List for List <https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true> <GroupDTO <http://openmeetings.apache.org/openmeetings-db/apidocs/org/apache/openmeetings/db/dto/user/GroupDTO.html?is-external=true>> and GroupDTO <http://openmeetings.apache.org/openmeetings-db/apidocs/org/apache/openmeetings/db/dto/user/GroupDTO.html?is-external=true> and the answer was the same. am I doing something wrong????
