Hi Jerome, Thanks for your response. The problem was due to not including Jackson jar. Sorry, I'm a new comer to Restlet and Java (in that order)
Anyway, I'd like to handle JSON and XML formats for my representations. Xstream integration with Restlet was promising, but Xtream has been discarded because of GAE incompatibility. Could you suggest the best way to get JSON and XML in my Restlet webservice over GAE?. Best regards, Juan Carlos González ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2450115