Hi, and thank you for your very interesting project !
I have encountered somes issues with the Eclipse run configuration (no j3dcore-ogl-chk in java.library.pat) I have finaly fixed when I write the complete path of the /lib in the VM option :
-Djava.ext.dirs=C:/Users/MAF/Documents/SweetHome3D-3.6-src/lib;C:/Users/MAF/Documents/SweetHome3D-3.6-src/lib/windows/i386
But now, I'm stopped by a new problems : "impossible to open the C:/Users/MAF/Documents/SweetHome3D-3.6-src/classes/default.sh3d" ...