When the json is invalid, xLog crashes the Android app and gives error "format parse ..."
Instead of doing that it should either give helpful validation errors like this site: https://jsonformatter.curiousconcept.com/#
Or simply print in the logcat that the "json is invalid". The App should NOT crash.
This is what https://github.com/orhanobut/logger does:
The important part is that App is not crashed!

Please think of a more thoughtful way of dealing with invalid json errors. Crashing the app is very inconvenient.