[keycloak-user] REST DELETE should not accept body?

i am using apache cxf webclient to access keycloak REST api. it cannot send a body using delete.  i am trying to delete a realm role mapping DELETE /admin/realms/{realm}/users/{id}/role-mappings/realm Then I read this stackoverflow that says DELETE is not allowed to send body https://stackoverflow.com/questions/299628/is-an-entity-body-allowed-for-... Please advise...