Index: trunk/src/org/openstreetmap/josm/gui/ScrollViewport.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/ScrollViewport.java	(revision 13864)
+++ 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) {