Unsupported Media Type (415)

[Killian]

Hi Lads,

Since I'm a newbie with Restlet, apologies in advance if this is trivial. I've 
been struggling with this since a few days and really can't find the solution 
to this problem.

I'm currently simply following the First step tutorial to build a simple 
application.

Basically, what I want is to simply send a Contact object from a client running 
in GAE to a server running in a Tomcat EE.
I can successfully send Forms using Representations between client and servers 
but I would rather use simply Java objects.

The @Get method works fine and a Contact object is returned successfully. 
However, if I place a Contact object as a parameter it is always received as 
null.

The method causing most problems is the @Put method.
When I call the store method,  the client throws the following:

Caused by: Unsupported Media Type (415) - OK
        at 
org.restlet.resource.ClientResource$1.invoke(ClientResource.java:1648)
        at $Proxy32.store(Unknown Source)

while the server side throws:

java.lang.NumberFormatException: Expected type 'int' but received a 
non-numerical value: 
//OK[0,0,0,0,1,["ie.slicepedia.api.Contact/1106672264"],0,6]
        at 
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.getNumberFormatException(ServerSerializationStreamReader.java:825)
        at 
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readInt(ServerSerializationStreamReader.java:491)

Incidently, the server side is also outputting the following warning:
WARNING: The protocol used by this request is not declared in the list of 
client connectors. (FILE)

but I don't understand why because I seem to be specifying the protocol in the 
CreateInBoundRoot method.

I would really appreciate any help or advice on this topic since this simple 
task has been bugging me for a while now.

Thanks very much in advance :-)




My set up is the following. On the server side I'm using a EE server using 
Tomcat with the following jars:
EE editions
org.restlet.jar
org.restlet.ext.xml.jar
org.restlet.ext.servlet.jar
org.restlet.ext.net.jar
org.restlet.ext.json.jar
org.restlet.ext.jackson.jar
org.restlet.ext.gwt.jar
org.json.jar
gwt-servlet.jar

My ContactServerResource is similar to the example:
        @Get
        public Contact retrieve(Contact contact) {
                return contact;
        }

        @Put
        public void store(Contact contact) {
                ContactServerResource.contact = contact;
        }

And CreateInBoundRoot() is

Router router = new Router(getContext());
                getConnectorService().getClientProtocols().add(Protocol.FILE);
                
                // Serve the files generated by the GWT compilation step.
                File warDir = new File("");
                if (!"war".equals(warDir.getName())) {
                        warDir = new File(warDir, "war/");
                }

                Directory dir = new Directory(getContext(),
                                LocalReference.createFileReference(warDir));
                router.attachDefault(dir);
                router.attach("/slices", ContactServerResource.class);


My Restlet client making calls to this EE server does so within a GAE server.
Client Jars:
GAE editions
org.restlet.jar
org.restlet.ext.servlet.jar
org.restlet.ext.net.jar
org.restlet.ext.json.jar
org.restlet.ext.jackson.jar
org.restlet.ext.gwt.jar
gwt-servlet.jar

ClientResource cr = new ClientResource(
                                        
"http://localhost:8080/SlicepediaServer/slices";);
                        
ContactResource resource = cr.wrap(ContactResource.class);
//                      Contact contact = resource.retrieve(new Contact());
                        resource.store(new Contact());

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