Do not updates destinations's properties on creation if null.

joram/joram/client/jms/src/main/java/org/objectweb/joram/client/jms/Destination.java

@@ -446,7 +446,7 @@ public abstract class Destination extends AdministeredObject implements javax.jm
     dest.adminName = name;
 
     // If the destination already exists the properties shall be updated.
-    dest.setProperties(props);
+    if (dest != null) dest.setProperties(props);
     
     // Be careful, MBean registration is now done explicitly
   }

joram/joram/client/jms/src/main/java/org/objectweb/joram/client/jms/admin/AdminWrapper.java

@@ -774,6 +774,7 @@ public class AdminWrapper implements AdminItf {
     Queue queue = Queue.createQueue(reply.getId(), name);
     
     // If the destination already exists the properties shall be updated.
+    if (prop != null)
     processAdmin(queue.getName(), AdminCommandConstant.CMD_SET_PROPERTIES, prop);
     
     if (AdminModule.wrapper != this)
@@ -838,6 +839,7 @@ public class AdminWrapper implements AdminItf {
     Topic topic = Topic.createTopic(reply.getId(), name);
 
     // If the destination already exists the properties shall be updated.
+    if (prop != null)
     processAdmin(topic.getName(), AdminCommandConstant.CMD_SET_PROPERTIES, prop);
 
     if (AdminModule.wrapper != this)