Index: trunk/src/org/openstreetmap/josm/Main.java
===================================================================
--- trunk/src/org/openstreetmap/josm/Main.java	(revision 12010)
+++ trunk/src/org/openstreetmap/josm/Main.java	(revision 12011)
@@ -583,5 +583,5 @@
     protected abstract void initializeMainWindow();
 
-    private static class InitializationTask implements Callable<Void> {
+    static final class InitializationTask implements Callable<Void> {
 
         private final String name;
@@ -1231,4 +1231,12 @@
 
     /**
+     * Clears the network errors cache.
+     * @since 12011
+     */
+    public static void clearNetworkErrors() {
+        NETWORK_ERRORS.clear();
+    }
+
+    /**
      * Returns the JOSM website URL.
      * @return the josm website URL