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Java RMI Server problems

I apologize in advance for what's likely to be an obvious problem, but I've been trying to get this working all day and I can't figure out how to get this to work. In short: my RMIregistry can't find the interface class of my RMI server app.
I'm running rmiregistry.exe through Eclipse with these arguments:
1234 -J-Djava.rmi.server.useCodebaseOnly=false
And I got the following RMI server:
package es.test.innova.pruebas.test;
import java.io.File;
import java.rmi.Naming;
import java.rmi.RMISecurityManager;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
public class TestImpl extends UnicastRemoteObject implements Test
{
public TestImpl() throws RemoteException {}
public static void main(String args[])
{
try
{
if (System.getSecurityManager() == null) {
System.setSecurityManager(new RMISecurityManager());
}
TestImpl obj = new TestImpl();
Naming.rebind("rmi://localhost:1234/Test",obj);
System.out.println("Connected to registry!");
}
catch (Exception e)
{
System.out.println("HelloImpl err: " + e.getMessage());
e.printStackTrace();
}
}
#Override
public String validate(File f) throws RemoteException {
return "hello world";
}
}
Which I then run with these arguments:
-Djava.security.policy=C:\D\RMI\policy.all -Djava.rmi.server.codebase=file:/C:/D/Proyectos/Firma/validarfirma/
The policy file referenced is this:
grant {
permission java.security.AllPermission "", "";
};
The codebase parameter references the project's folder, through I've also tried directing it at the folder's bin folder and even directly at the .class files, as mentioned in other answers in this site.
Regardless of what I try, I keep getting this error:
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:419)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at sun.rmi.transport.Transport$1.run(Transport.java:174)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:378)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at es.test.innova.pruebas.test.TestImpl.main(TestImpl.java:25)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:409)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at sun.rmi.transport.Transport$1.run(Transport.java:174)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1206)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1219)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:729)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:673)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:610)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:255)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1556)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1512)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1769)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
... 13 more
HelloImpl err: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: es.test.innova.pruebas.test.Test
Class not found. I've tried running everything manually instead of using Eclipse, running rmi directly from the .class file folder, compiling the Server as a .jar and using that instead... And of course I've fiddled with the codebase parameter a bunch. I've tried everything I could think of, but I'm stuck.
The thing is I must be setting the codebase wrong or someting like that, but I don't see how. The registry just can't find my classes.
I'd be very grateful if someone could help me out here. Thanks for reading.

-Djava.rmi.server.codebase=file:/C:/D/Proyectos/Firma/validarfirma/
The meaning of this is that the missing class should be located as:
C:/D/Proyectos/Firma/validarfirma/es/test/innova/pruebas/test/Test.class

Running Tomcat causes java.rmi.ServerException in the unrelated project

I have a java non-web application that programmatically starts Jetty server to give API access to it. The communication between them are done via RMI. It all works fine until I start Tomcat that has no any relation to this project. If Tomcat is running, then I am getting the following exception while trying to start the application:
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: ua.cn.stu.datalink.rmi.AcmRemoteService (no security manager: RMI class loader disabled)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:420)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:268)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$1/351702438.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:379)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at ua.cn.stu.datalink.acmserver.rmi.AcmRemoteServiceImpl.main(AcmRemoteServiceImpl.java:107)
at ua.cn.stu.datalink.acmserver.rmi.AcmRemoteServiceImpl$2.run(AcmRemoteServiceImpl.java:138)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: ua.cn.stu.datalink.rmi.AcmRemoteService (no security manager: RMI class loader disabled)
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:410)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:268)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$1/351702438.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
... 1 more
Caused by: java.lang.ClassNotFoundException: ua.cn.stu.datalink.rmi.AcmRemoteService (no security manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:556)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:255)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1559)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
... 16 more
It seems like the problem lies here - ua.cn.stu.datalink.rmi.AcmRemoteService (no security manager: RMI class loader disabled)
But why starting Tomcat disables RMI class loader?

You must be conditionally starting a registry, that doesn't start if one is running anyway, and Tomcat is starting its own. So when you bind, you're binding to Tomcat's registry, which doesn't have that class available, so it fails.

UnmarshalException and ClassNotFoundException: what am I doing wrong?

This is first time that I use RMI, and this the main that I wrote:
public class Main {
public static void main(String[] args)
{
try {
String name = "Server";
ServerInterface server = new ServerRMI(0,new Executor());
ServerInterface stub =
(ServerInterface) UnicastRemoteObject.exportObject(server, 0);
Registry registry = LocateRegistry.getRegistry();
registry.rebind(name, stub);
System.out.println("ServerRMI bound");
} catch (Exception e) {
System.err.println("ServerRMI exception:");
e.printStackTrace();
}
}
}
I already read this post where it is suggested to modify the codebase, so I set the VM options of Intellij as:
-Djava.rmi.server.codebase=file:/home/luca/Documents/PAD/RaftFS/target/
Where target contains RaftFS-1.0-SNAPSHOT.jar which is the jar produced by Maven (and so containing ServerInterface). Obviously, before lunch the Main program I execute rmiregistry on the shell. The CLASSHPATH variable is not set in my system environment.
Anyway these exception raise when I execute this program:
/usr/lib/jvm/java-1.7.0-openjdk-amd64/bin/java -Djava.rmi.server.codebase=file:/home/luca/Documents/PAD/RaftFS/target/ -Didea.launcher.port=7535 -Didea.launcher.bin.path=/home/luca/idea-IU-139.1117.1/bin -Dfile.encoding=UTF-8 -classpath /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/compilefontconfig.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/management-agent.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/javazic.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/sunjce_provider.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/dnsns.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/icedtea-sound.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/sunpkcs11.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/java-atk-wrapper.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/zipfs.jar:/usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/lib/ext/localedata.jar:/home/luca/Documents/PAD/RaftFS/out/production/main:/home/luca/idea-IU-139.1117.1/lib/idea_rt.jar com.intellij.rt.execution.application.AppMain PAD.RaftFS.Server.Main
ServerRMI exception:
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: PAD.RaftFS.Server.ServerInterface
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:419)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$2.run(Transport.java:202)
at sun.rmi.transport.Transport$2.run(Transport.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:198)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:378)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at PAD.RaftFS.Server.Main.main(Main.java:20)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: PAD.RaftFS.Server.ServerInterface
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:409)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$2.run(Transport.java:202)
at sun.rmi.transport.Transport$2.run(Transport.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:198)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: PAD.RaftFS.Server.ServerInterface
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1206)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1219)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:729)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:673)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:610)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:255)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1558)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
... 17 more
IMPORTANT UPDATE: if substitute Registry registry = LocateRegistry.getRegistry(); with Registry registry = LocateRegistry.createRegistry(1099); and avoiding to execute rmiregistry, then no exception is raised. Can I assume that with 0 parameter the register is bounded to an anonymous port? Why this happens? It actually solve the problem or not?

To answer your actual question, the Registry didn't have the class mentioned available on its CLASSPATH. Using the codebase feature is one solution to that, but it's complex. A simpler solution is to start the registry in the server JVM with LocateRegistry.createRegistry().
You can use port zero for that, which does indeed indicate an anonymous port, but it's completely pointless to do so. It has no bearing on the original problem and it just makes your Registry impossible for the client to find.
Another solution is to specifics the CLASSPATH when starting the registry, with
rmiregistry -J-classpath=...

Java RMI server probleme

i'm doing this tutorial : http://www.youtube.com/watch?v=vkw275ptI3E
it's a java rmi tutorial (client, server)
but he try this on Local and it dosen't work on my Computer
When i try to activate my server in local i got this message :
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:400)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
at simple.rmi.server.MyServer.main(MyServer.java:33)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:390)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:248)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.ClassNotFoundException: simple.rmi.server.MyServer_Stub
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1185)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:249)
at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1198)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:433)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:164)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:201)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1589)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1494)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1748)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1327)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:349)
... 12 more
What can i do ?

Some incompatible changes have been made in recent JDK versions that cause old RMI tutorials not to work. In particular, JDK 7u21 now requires you to set the codebase property on the client and the registry as well as on the server. The screencast only shows the setting on the server.
The screencast (or perhaps the Eclipse plugin) is also out of date in that it shows the generation of stubs. It's not necessary to use any tool such as rmic or an Eclipse plugin to generate stubs, since stubs have been generated automatically by RMI since Java SE 5 (which was released in 2002).

RMI app throwing error while running from terminal but working ok with eclipse

I am trying to develop a chat app, using java RMI, where multiple clients can interact with each other. The issue is, the codes are working well, atleast so far, in eclipse but when I try it from terminal using the standard procedures following rmic, start rmiregistry and initiate server and then client, its throwing a long list of ChatServer_stub.class ClassNotFoundException. ChatServer_stub.class is there, I mean I cant initiate a server without creating stub using rmic. anyideas??? I dont think this issue is anywhere related with the codes since it working with eclipse, so I am pasting just the errors here.
just in case..here are the codes : https://github.com/kumarsaurabh20/Programming_Test/tree/master/network_prog_Java/RMIChatApp/src
Registry is created..
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: ChatServer_Stub
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:419)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:273)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:251)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:377)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at ChatServer.rebindChatServer(ChatServer.java:47)
at ChatServer.main(ChatServer.java:98)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: ChatServer_Stub
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:409)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.ClassNotFoundException: ChatServer_Stub
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:266)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:451)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:182)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:220)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1609)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1768)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
... 12 more

I guess the answe lies here: http://docs.oracle.com/javase/6/docs/technotes/guides/rmi/codebase.html
Found a similar question in this post with a well explained solution:
running rmi server, classnotfound
thanx A. Levy

The Registry doesn't have the stub on its CLASSPATH. Either start the Registry such that it does, or use the codebase feature.