Do not allow to create a room if MUC delete does not allow it.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@10464 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/muc/spi/MultiUserChatServiceImpl.java

@@ -480,12 +480,20 @@ public class MultiUserChatServiceImpl implements Component, MultiUserChatService
                 catch (IllegalArgumentException e) {
                     // Check if room needs to be recreated in case it failed to be created previously
                     // (or was deleted somehow and is expected to exist by a delegate).
-                    if (mucEventDelegate != null && mucEventDelegate.loadConfig(room)) {
+                    if (mucEventDelegate != null) {
+                        if (mucEventDelegate.loadConfig(room)) {
                             loaded = true;
                             if (room.isPersistent()) {
                                 MUCPersistenceManager.saveToDB(room);
                             }
                         }
+                        else {
+                            // Room does not exist and delegate does not recognize it and does
+                            // not allow room creation
+                            throw new NotAllowedException();
+
+                        }
+                    }
                     else {
                         // The room does not exist so check for creation permissions
                         // Room creation is always allowed for sysadmin