Index: /trunk/src/org/openstreetmap/josm/gui/ScrollViewport.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/ScrollViewport.java	(revision 13865)
+++ /trunk/src/org/openstreetmap/josm/gui/ScrollViewport.java	(revision 13866)
@@ -99,5 +99,5 @@
     private final int allowedScrollDirections;
 
-    private final ComponentAdapter refreshButtonsOnResize = new ComponentAdapter() {
+    private final transient ComponentAdapter refreshButtonsOnResize = new ComponentAdapter() {
         @Override
         public void componentResized(ComponentEvent e) {