Index: applications/editors/josm/plugins/czechaddress/src/org/openstreetmap/josm/plugins/czechaddress/actions/SplitAreaByEmptyWayAction.java
===================================================================
--- applications/editors/josm/plugins/czechaddress/src/org/openstreetmap/josm/plugins/czechaddress/actions/SplitAreaByEmptyWayAction.java	(revision 18409)
+++ applications/editors/josm/plugins/czechaddress/src/org/openstreetmap/josm/plugins/czechaddress/actions/SplitAreaByEmptyWayAction.java	(revision 18413)
@@ -124,5 +124,5 @@
         }
 
-        for (Relation relation : Main.main.getCurrentDataSet().relations)
+        for (Relation relation : Main.main.getCurrentDataSet().getRelations())
             for (RelationMember areaMember : relation.getMembers())
                 if (area.equals(areaMember.getMember()))