Index: /applications/editors/josm/plugins/livegps/src/livegps/LiveGpsPlugin.java
===================================================================
--- /applications/editors/josm/plugins/livegps/src/livegps/LiveGpsPlugin.java	(revision 26216)
+++ /applications/editors/josm/plugins/livegps/src/livegps/LiveGpsPlugin.java	(revision 26217)
@@ -98,5 +98,6 @@
 
     public void layerRemoved(Layer oldLayer) {
-        assert (oldLayer == lgpslayer);
+        if (oldLayer != lgpslayer)
+		return;
 
         enableTracking(false);