This PR makes the JSON output comparable with the JSON from the immutables branch to enable simple file-based comparisons as well as object-equality comparisons.
@balhoff if this looks fine to you can you also create a new maven release so that @matentzn can reproduce the json output which should now be consistently ordered.
This PR makes the JSON output comparable with the JSON from the immutables branch to enable simple file-based comparisons as well as object-equality comparisons.