Hello, I have the same issue using the current 2.1-snapshot as of today.
Details of the setup: --------------------- Restlet Client: --------------- - Android 2.1-snapshot Libs in Classpath: - jackson-core-asl-1.6.3.jar - jackson-mapper-asl-1.6.3.jar - org.restlet.ext.jackson.jar - org.restlet.jar Snippets: ClientResource cr = new ClientResource("...url..."); ItemResource res = cr.wrap(ItemResource.class); Items items = res.search(searchDefinition); Server Side (GAE): ------------------ - gae-2.1snapshot Libs: - org.restlet.jar - org.restlet.ext.servlet.jar - org.restlet.ext.jackson.jar - jackson-core-asl-1.6.3.jar - jackson-mapper-asl-1.6.3.jar Snippets: ... public interface ItemResource { @Post public Items search(SearchDefinition req); } Implementation: ... public Items search(SearchDefinition searchDef) { ---> here, searchDef is null on the GAE-Instance, in the locally deployed jetty, the searchDef-Object is correctly deserialized. } Anyone else still having this issue? Thanks in advance, Joe ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2691851