Hi, attached is a very simple code. I ran it on the local gae environment. When i create the JsonRepresentation, it's JsonValue is empty... That's not the same behaviour as in my other project, but maybe that's somehow causing the error.
Best Regards, Sebastian http://restlet-discuss.1400322.n2.nabble.com/file/n6466814/src.zip src.zip -- View this message in context: http://restlet-discuss.1400322.n2.nabble.com/IncompatibleClassChangeError-with-ConcurrentMap-tp6393712p6466814.html Sent from the Restlet Discuss mailing list archive at Nabble.com. ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2763525

