I am trying to write a generic method to insert json data into the database. I get the object (different classes) created. However, I can not pass it to the next method, because compiler says, it is not of type 'MyInterface', which the class implements. Is there a way to cast the obj to it's real class (dynamically evaluating the current class)? Or turn of compiler error checking for this method? Or any other idea?

```
public static int updateDBObjectJson(Uri uri, Class dbObject, String json) {
    int changedEntries = 0;
    if (json.length() > 5) {
        try {
            JSONArray jArr = new JSONArray(json);
            for (int i = 0; i < jArr.length(); i++) { // no for each available
                JSONObject jObj = jArr.optJSONObject(i);

                Constructor ct = dbObject.getConstructor(JSONObject.class);
                Object obj = ct.newInstance(jObj);

                // update DB
--> does not compile: boolean changed = upsertEntry(uri, obj, false);
--> correct answer:   boolean changed = upsertEntry(uri, (MyInterface) obj, false);
                if (changed)
                    changedEntries++;
            }
        } catch (JSONException e) {
            ILog.e("JSON Error: " + json);
        } catch (Exception e) {
            ILog.e(e);
        }
    }

```