The @dataProvider annotation should be a static function, check and make data provider in the extension, at least:
- ConsumerSubmitControlTest with provideSubmit_propose_OAuth1 and provideSubmit_propose_OAuth2
- abstract EndpointTest with provideTestHandlerExecute
static and adjust the usages (More infos at T332865).
Initial work was done in 4bb301bf2edccd12277fb1f2667d9591b25d605a