Index: /trunk/src/org/openstreetmap/josm/data/validation/Test.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/validation/Test.java	(revision 6399)
+++ /trunk/src/org/openstreetmap/josm/data/validation/Test.java	(revision 6400)
@@ -154,9 +154,13 @@
         progressMonitor.setTicksCount(selection.size());
         for (OsmPrimitive p : selection) {
-            if (p.isUsable()) {
+            if (isPrimitiveUsable(p)) {
                 p.accept(this);
             }
             progressMonitor.worked(1);
         }
+    }
+
+    public boolean isPrimitiveUsable(OsmPrimitive p) {
+        return p.isUsable() && (!(p instanceof Way) || (((Way) p).getNodesCount() > 1)); // test only Ways with at least 2 nodes
     }
 
Index: /trunk/src/org/openstreetmap/josm/data/validation/tests/UntaggedWay.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/validation/tests/UntaggedWay.java	(revision 6399)
+++ /trunk/src/org/openstreetmap/josm/data/validation/tests/UntaggedWay.java	(revision 6400)
@@ -153,3 +153,8 @@
         return deletePrimitivesIfNeeded(testError.getPrimitives());
     }
+
+    @Override
+    public boolean isPrimitiveUsable(OsmPrimitive p) {
+        return p.isUsable();
+    }
 }