Following up on [1], currently we give 400 (Bad Request), with no good meaning, when creating/updating a PushApplication or a Variant;
The HTML page(!) simply says "The request sent by the client was syntactically incorrect "
As suggested in [1] a good idea is using Bean Validation and returning better errors.
The result would be a 400 (Bad Request) response, containing the errors and their messages as a JSON object (instead of a HTML page).
E.g.:
{"name":"may not be null"}
This is a) more meaningful and we can also get rid of our 'hard-coded' validation rules, like:
-Matthias