diff -r c08ac834bf6a autoupdate.services/src/org/netbeans/modules/autoupdate/services/OperationValidator.java
--- a/autoupdate.services/src/org/netbeans/modules/autoupdate/services/OperationValidator.java	Tue Feb 28 12:03:22 2012 +0100
+++ b/autoupdate.services/src/org/netbeans/modules/autoupdate/services/OperationValidator.java	Wed Feb 29 16:34:02 2012 +0100
@@ -572,7 +572,7 @@
         Set<Module> mustRemain = new HashSet<Module> ();
         Set<Module> affectedEagers = new HashSet<Module> ();
         for (Module depM : candidates) {
-            if ((Utilities.isKitModule (depM) || Utilities.isEssentialModule (depM)) && ! requested.contains (depM)) {
+            if ((Utilities.isKitModule (depM) || depM.getAttribute("Bundle-SymbolicName") != null || Utilities.isEssentialModule (depM)) && ! requested.contains (depM)) {
                 if (LOGGER.isLoggable (Level.FINE)) {
                     LOGGER.log(Level.FINE, "The module " + depM.getCodeNameBase() +
                         " is KIT_MODULE and won't be deactivated now not even " + Utilities.findRequiredModules(depM, mm, module2required));