Yes, App Engine suggests external JARs. What is likely happening is that the library is using a class that is not on the whitelist. Since it is an MSN Messenger app, this likely has to do with classes that require socket communication, which we do not allow. Have you looked into the XMPP service?
On Mon, Dec 7, 2009 at 2:19 AM, Leon <yudong.w...@gmail.com> wrote: > I have trying to deploy a web MSN Messenger app to GAE and the > following error appears. > > java.lang.NoClassDefFoundError: rath.msnm.MSNMessenger is a restricted > class. Please see the Google App Engine developer's guide for more > details. > > The app used an external jar includes rath.msnm.MSNMessenger class. > Does GAE support external jars? > > > Thank you! > > Leon > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > > -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
