I need to use MapsForge(https://github.com/mapsforge/mapsforge in my java swing Application and i also need to integrate various .map files(i downloaded them) for offline map rendering but i am not able to find any suitable documentation or sample code for implementing this

Or are there any other Libraries that are capable of rendering large ,detailed maps which are already downloaded?

I tried some basic sample codes, one was also provided on the Git page but i am getting various Class not found etc type of error: https://github.com/mapsforge/mapsforge/blob/master/mapsforge-samples-awt/src/main/java/org/mapsforge/samples/awt/Samples.java