Index: /applications/editors/josm/plugins/junctionchecking/src/org/openstreetmap/josm/plugins/JunctionChecker/JunctionCheckerMapMode.java
===================================================================
--- /applications/editors/josm/plugins/junctionchecking/src/org/openstreetmap/josm/plugins/JunctionChecker/JunctionCheckerMapMode.java	(revision 34950)
+++ /applications/editors/josm/plugins/junctionchecking/src/org/openstreetmap/josm/plugins/JunctionChecker/JunctionCheckerMapMode.java	(revision 34951)
@@ -49,4 +49,5 @@
         MainApplication.getMap().mapView.removeMouseListener(this);
         MainApplication.getMap().mapView.removeMouseMotionListener(this);
+        MainApplication.getLayerManager().removeActiveLayerChangeListener(this);
     }