How to make nearly 1,70,000 marker dots on JMapViewer?

Question

I have real-time (or nearer real time) data of flight. I want to make dots based on lat-long basis. But there are too many dots to represent and my map stuck while reading:

Queues:

1. Rather than painting whole screen tiles I want to repainting only one tile.
   and
   
2. While I am adding 1,70,000 to map.addMapMarker(new MapMarkerDot(Color,lat,lon)) - facing the problem that java.util.ConcurrentModificationException.

What is an easy way to solve my problem?