Help! RMI throws NoSuchMethodError

Question

Everything goes fine. The rmiregistry starts, server code starts. The binding takes place properly but when u do
Test test = (Test)Naming.lookup( "rmi://localhost/test")
it gives this :
Exception in thread "main" java.lang.NoSuchMethodError: stub class initialization failed at TestImpl_Stub.<clinit>(Unknown Source)
at java.lang.reflect.Field.getLong(Native Method)
at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:415)
at java.security.AccessController.doPrivileged(Native Method)
at java.io.ObjectStreamClass.init(ObjectStreamClass.java:401)
at java.io.ObjectStreamClass.lookupInternal(ObjectStreamClass.jav
at java.io.ObjectStreamClass.setClass(ObjectStreamClass.java:566)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1186)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at TestClient.getHost(TestClient.java:68)
at TestClient.initialise(TestClient.java:102)
at TestClient.<init>(TestClient.java:17)
at TestClient.main(TestClient.java:132)
Any clues???

Answer 1

Well, I'm sure this isn't it, but I've never seen "rmi://.....". I always just use "//...". Anyways, you could try something like:
Regisry r = LocateRegistry.getRegistry("127.0.0.1", 1099);
RMIInterface t = (RMIInterface) r.lookup("//127.0.0.1/test");This probably won't change things, but you never know. Now, it seems like your maybe missing something on the server side. When you start your rmi server, maybe try specifying the codebase and server name:
java -cp . -Djava.rmi.server.hostname=127.0.0.1 -Djava.rmi.server.codebase=. -Djava.security.policy=./java.policy RMIServerAlso, how do you start rmiregistry? From the command line or in your source? You can create the registry from the main method of your RMIServer class:
public class RMIServer extends UnicastRemoteObject implements RMIInterface {
public static void main(String[] args) {
  Registry r = LocateRegistry.createRegistry(1099);
  RMIServer theServer = new RMIServer(31415);
  r.rebind("//127.0.0.1/someService", theServer);
public RMIServer(int port) throws RemoteException {
  super(port);
}This creates an rmi registry at port 1099, and creates your service at port 31415 with the name "someService" on a server called "127.0.0.1". If you combine all of these, I think it should work. I am of course assuming that the stubs and skeletons are being generated, and then deployed with the client app appropriately. Hope this helps.
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