Hi Xavier, after having a look at the code,the problem is that there is no converter that is able to convert your object into a Json representation. The XStream extension provides such automatic converter, unfortunately this extension is not compatible with the GWT edition.
In terms of automatic serialization/deserialization, you can have a look at this sample application which illustrates the GWT serialization: http://wiki.restlet.org/docs_2.0/303-restlet.html Otherwise, you can provide your own Converter (subclass of ConverterHelper) and register it: - in jse, jee and gae editions, add a META-INF/service/org.restlet.engine.converter.ConverterHelper file which contains the full name of your converter (see the code of some extensions such as json, for example) - in gwt, and android, register the converter by hand : Engine#getRegisteredConverters().add(your converter); I hope this will help you. Best regards, THierry Boileau > Hi, > I'm encountering a problem with json when transmittting a jsonized > object from gwt to the restlet server... My "Put" method receives a > null object... I've attached the file to this email... > regards > Xavier > ps : the example is splitted in two ecliose projects, one for the > client , one for the server. ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2443791

