Request-Data is attachement.json, containing a name-field and a
base64 encoded byte-array with 6 million bytes.
To produce an OutOfMemory Error with an 6MB-Request:
- run springboot application with -mx256m
curl -X POST -H 'Content-Type: application/json' -d @attachement.json http://localhost:8080/attachements