Index: trunk/src/org/openstreetmap/josm/command/MoveCommand.java
===================================================================
--- trunk/src/org/openstreetmap/josm/command/MoveCommand.java	(revision 14999)
+++ trunk/src/org/openstreetmap/josm/command/MoveCommand.java	(revision 15000)
@@ -181,5 +181,8 @@
     public void moveAgain(double x, double y) {
         for (Node n : nodes) {
-            n.setEastNorth(n.getEastNorth().add(x, y));
+            EastNorth eastNorth = n.getEastNorth();
+            if (eastNorth != null) {
+                n.setEastNorth(eastNorth.add(x, y));
+            }
         }
         this.x += x;