diff --git a/lib/installer-exclude/libjitsi.jar b/lib/installer-exclude/libjitsi.jar
index 1c8c1af84..f328f668e 100644
Binary files a/lib/installer-exclude/libjitsi.jar and b/lib/installer-exclude/libjitsi.jar differ
diff --git a/src/net/java/sip/communicator/service/protocol/media/MediaAwareCallConference.java b/src/net/java/sip/communicator/service/protocol/media/MediaAwareCallConference.java
index f439dd5cf..55cff416d 100644
--- a/src/net/java/sip/communicator/service/protocol/media/MediaAwareCallConference.java
+++ b/src/net/java/sip/communicator/service/protocol/media/MediaAwareCallConference.java
@@ -519,7 +519,12 @@ public void propertyChange(PropertyChangeEvent ev)
             if (n != 0)
             {
                 for (PropertyChangeListener l : ls)
-                    l.propertyChange(ev);
+                {
+                    if (l == null)
+                        break;
+                    else
+                        l.propertyChange(ev);
+                }
             }
         }