X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altosui%2FAltosSiteMap.java;h=63995c402eac5fdb520e9cfaa9788cd58246fce9;hb=c27e211796a64b6bbacfe6a1516e9872fdb0853e;hp=c258b3e5559728f364105d0794f89f4c8eba9784;hpb=cbfbaabb39f9f7709d00cf3dc63cc1bc7563062e;p=fw%2Faltos

diff --git a/altosui/AltosSiteMap.java b/altosui/AltosSiteMap.java
index c258b3e5..63995c40 100644
--- a/altosui/AltosSiteMap.java
+++ b/altosui/AltosSiteMap.java
@@ -31,6 +31,7 @@ import java.util.prefs.*;
 import java.lang.Math;
 import java.awt.geom.Point2D;
 import java.awt.geom.Line2D;
+import java.util.concurrent.*;
 
 public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay {
 	// preferred vertical step in a tile in naut. miles
@@ -110,7 +111,7 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay {
 		return latlng(pt, scale_x, scale_y);
 	}
 
-	HashMap<Point,AltosSiteMapTile> mapTiles = new HashMap<Point,AltosSiteMapTile>();
+	ConcurrentHashMap<Point,AltosSiteMapTile> mapTiles = new ConcurrentHashMap<Point,AltosSiteMapTile>();
 	Point2D.Double centre;
 
 	private Point2D.Double tileCoordOffset(Point p) {