So I got it. If you try to call ODataOfflineStore.globalInit(); delet this, it trys to load the libary out of the wrong path which is created on initalise without contex. So you only need to call offlineStore = new ODataOfflineStore(context) to initialise the Store.
And it will finaly load the libary correct. I am using second Configuration which is working well after finguring out how to initialise.
Hope this will works for you too.
Regards,
Dominik