Hi Chen, at this time the Xstream library does not work on the GAE platform (see http://restlet.tigris.org/issues/show_bug.cgi?id=863). We're still waiting for a fix of this bug. In replacement we suggest to use the extension based on Jackson for handling json representations. (Ive just sent you a mail about that: http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2583918)
Best regards, Thierry Boileau ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2583931
