Index: /trunk/src/org/openstreetmap/josm/gui/PleaseWaitRunnable.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/PleaseWaitRunnable.java	(revision 11800)
+++ /trunk/src/org/openstreetmap/josm/gui/PleaseWaitRunnable.java	(revision 11801)
@@ -29,4 +29,5 @@
     private final String title;
 
+    /** progress monitor */
     protected final ProgressMonitor progressMonitor;
 
@@ -113,5 +114,5 @@
                 }
             }
-        } catch (final JosmRuntimeException | IllegalArgumentException | IllegalStateException |
+        } catch (final JosmRuntimeException | IllegalArgumentException | IllegalStateException | UnsupportedOperationException |
                 OsmTransferException | IOException | SAXException | InvocationTargetException | InterruptedException e) {
             if (!ignoreException) {