Index: trunk/src/org/openstreetmap/josm/gui/bbox/SlippyMapBBoxChooser.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/bbox/SlippyMapBBoxChooser.java	(revision 3723)
+++ trunk/src/org/openstreetmap/josm/gui/bbox/SlippyMapBBoxChooser.java	(revision 3725)
@@ -10,4 +10,5 @@
 import java.awt.Rectangle;
 import java.awt.Toolkit;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -67,5 +68,5 @@
         @Override public TileUpdate getTileUpdate() { return source.getTileUpdate(); }
 
-        @Override public String getTileUrl(int zoom, int tilex, int tiley) { return source.getTileUrl(zoom, tilex, tiley); }
+        @Override public String getTileUrl(int zoom, int tilex, int tiley) throws IOException { return source.getTileUrl(zoom, tilex, tiley); }
 
         @Override public Image getAttributionImage() { return source.getAttributionImage(); }