Curious too to hear if you've made progress...?
I too am trying to get an existing desktop Java app that currently talks to a scale via a serial port converted to use a Bluetooth scale using the BlueCove version 2.1.1-SNAPSHOT library. I can get it to recognize the local device, but not the remote. Lot's of Android/IOS help, but little to no help on Java Windows/desktop. I know it's not in vogue, but it is still used... :-/