Index: trunk/src/org/openstreetmap/josm/data/validation/Test.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/validation/Test.java	(revision 9344)
+++ trunk/src/org/openstreetmap/josm/data/validation/Test.java	(revision 9345)
@@ -305,5 +305,5 @@
      */
     public boolean isCanceled() {
-        return progressMonitor.isCanceled();
+        return progressMonitor != null ? progressMonitor.isCanceled() : false;
     }