JSONSimple has deprecated a lot of stuff

[owainkenwayucl]

Bionic comes with a newer version of JSON Simple (>2.x) which has marked as deprecated most of the classes I am using, namely JSONArray, JSONParser and JSONObject.

Somewhere in this mess it's changed ownership as well.

[owainkenwayucl]

https://cliftonlabs.github.io/json-simple/

So it looks like 2.3.x is the last backwards compatible release.