jmapviewer

I'm working with OpenStreet Maps in Java with JMap Viwer http://wiki.openstreetmap.org/wiki/JMapViewer I can load the maps and everything ok but I don't know how to draw a line between two points from a latitude and longitude. Any body know the function to draw this kind of lines? Thank you. The addMapPolygon() method of JMapViewer works for this, but paintPolygon() silently rejects a polygon having fewer than three vertices. For a line between two points, just repeat the last Coordinate . Coordinate one = new Coordinate(...); Coordinate two = new Coordinate(...); List<Coordinate> route = new