Help!! java,rmic,rmiregistry,java,classpath,etc.

Question

My problems lie I think mainly when I try to javac, rmic, start rmiregistry and java in DOS. My directory structure is d:\javas\java\jdk\bin\MyAss1(project name)\Classes\
                         - Client (package name) + .java file
                         - Interface (package name) + 2 .java files
                         - Server (package) + 3 .java files
I have set the classpath and unset the classpath so many times I am cross-eyed. How do I set the classpath for compiling, then rmic�ing, then start rmiregistry and then again for starting servers? I have read countless documentation about this and am still confused. I think everything is going fine until I start the server � goes for a very long time and then eventually gives me � --- bound to registry�. When I start the client I get a very long error message, something about not being able to find the .stub. I am assuming it can�t find the .stub or am generating a wrong stub. Please tell me how to do this properly. I would be forever grateful as I am spending too much time on this and not enough on my other subjects. Thanks.
Below is my code. I am using Jcreator for my editor and JDK1.4.0 Beta version.
package Interface;
public interface MyClass extends java.rmi.Remote {
public void setMyClass(String val) throws java.rmi.RemoteException;
public String getMyClass() throws java.rmi.RemoteException;
}//MyClass
package Interface;
public interface MyClassFactory extends java.rmi.Remote {
     public MyClassFactory makeMyClass() throws java.rmi.RemoteException;
}//MyClassFactory
import Interface.*;
import java.io.Serializable;
// implementation for MyClassFactory
public class MyClassFactoryServant extends UnicastRemoteObject implements MyClassFactory {
     public MyClassFactoryServant() throws RemoteException {
          //no code needed : will call parent constructor automatically
     }//default constructor
     public MyClassFactory makeMyClass(){
          try {
               return( (MyClassFactory) new MyClassFactoryServant());
          }//try
          catch (Exception e) {
               System.out.println(e);
               return(null);
          }//catch
     }//makeMyClass
}//MyClassFactoryServant
package Client;
import java.rmi.*;
import Interface.*;
public class MyClassRMIClient {
private static String message = "";
private static String name = "rmi://localhost/MyClassFactory";
public static void main(String args[]) {
          String host="localhost";
          if (args.length >0) {
               host=args[0];
try {
     MyClassFactory sFact = (MyClassFactory) Naming.lookup(name /*"//"+host+"/MyClassFactory"*/);
               MyClass st = (MyClass) sFact.makeMyClass();
               st.setMyClass("Here I am");
message = st.getMyClass();
System.out.println(message);
}//try
catch (Exception e) {
                    System.out.println("GenericClient exception: " +
e.getMessage());
e.printStackTrace();
}//catch Error
}//main
}//GenericClient
package Server;
import java.rmi.*;
import Interface.*;
public class MyClassRMIServer {
     public static void main(String args[]) {
          try {
               MyClassFactoryServant obj = new MyClassFactoryServant();
               // Bind this object instance to the name "MyClassFactory"
               Naming.rebind("rmi://localhost:1099/MyClassFactoryServant", obj);
               System.out.println("MyClassFactoryServant bound in registry");
          } catch (Exception e) {
               System.out.println("MyClassFactoryServant err: " + e.getMessage());
               e.printStackTrace();
          }//catch Errors
     }//main
}//class GenericServer
package Server;
import java.rmi.*;
import java.rmi.server.*;
import Interface.*;
public class MyClassServant extends UnicastRemoteObject implements MyClass {
     // what follows is the implementation of the
     String theString;
     public MyClassServant() throws RemoteException {
          //no code needed : will call parent constructor automatically
     }//default constructor
     public void setMyClass(String val) throws java.rmi.RemoteException {
          theString = val;
     }//setMyClass
     public String getMyClass() throws java.rmi.RemoteException {
          return(theString);
     }//getMyClass
}//MyClassServant

Answer 1

here are some batch files i wrote to achieve all the javac, rmic, etc. i'll start with a couple of folder lists so that you can see where the files end up after the batch files have been executed
the project starts with the following structure
\archives
\classes
\policies
\projects\test\rik\server
----read.me
----cleanProject.bat
----compileClient.bat
----compileServerImplementation.bat
----compileServerInterface.bat
----deployPolicies.bat
----runClient.bat
----startRegistry.bat
----startServer.bat
----testLenClientOfRik.policy
----testRikServerImpl.policy
\source\test\len
----ClientOfRik.java
\source\rik
----Server.java
\source\rik\server
----Impl.java
and ends up with this one
\archives
----classes.jar
\classes\test\len
----ClientOfRik.class
\classes\test\rik
----Server.class
\classes\test\rik\server
----Impl.class
----Impl_Skel.class
----Impl_Stub.class
\policies
----testLenClientOfRik.policy
----testRikServerImpl.policy
\projects
(this remains unchanged)
\source
(this remains unchanged)
this is achieved by executing the following batch files in the following order
rem cleanProject.bat start
@echo off
echo Cleaning project
echo Deleting java archives
del \archives\classes.jar
echo Deleting class files
del \classes\test\rik\Server.class
del \classes\test\rik\server\Impl.class
del \classes\test\rik\server\Impl_Skel.class
del \classes\test\rik\server\Impl_Stub.class
del \classes\test\len\ClientOfRik.class
echo Deleting policy files
del \policies\testRikServerImpl.policy
del \policies\testLenClientOfRik.policy
rem cleanProject.bat end
rem compileServerInterface.bat start
@echo off
echo Compiling server interface
javac -d \classes \source\test\rik\Server.java
echo Maintaining class archive
chdir \archives
jar cvf classes.jar -C \classes \test\rik\Server.class
rem compileServerInterface.bat end
rem compileServerImplementation.bat start
@echo off
echo Compiling server implementation
javac -classpath \archives\classes.jar -d \classes \source\test\rik\server\Impl.java
echo Creating server stub and skeleton classes
rmic -classpath \classes -d \classes test.rik.server.Impl
cd \projects\test\rik\server
rem compileServerImplementation.bat end
rem compileClient.bat start
@echo off
echo Compiling client of rik of len
javac -classpath \archives\classes.jar -d \classes \source\test\len\ClientOfRik.java
rem compileClient.bat end
rem deployPolices.bat start
@echo off
copy testLenClientOfRik.policy \policies
copy testRikServerImpl.policy \policies
rem deployPolices.bat end
rem startRegistry.bat start
@echo off
echo Starting the rmi registry
start rmiregistry
rem startRegistry.bat end
rem startServer.bat start
@echo off
echo Starting the test rik server
start java -classpath \classes -Djava.rmi.server.codebase=file:/d:\classes/ -Djava.rmi.server.hostname=localhost -Djava.security.policy=\policies\testRikServerImpl.policy test.rik.server.Impl
rem startServer.bat end
rem runClient.bat start
@echo off
echo Running the client of rik of len
java -classpath \classes -Djava.security.policy=\policies\testLenClientOfRik.policy test.len.ClientOfRik
rem runClient.bat end
beware 'cos the line breaks (may) have been added by the text window in which i'm typing and you'll have to remove them if you use 'em...
i can send you a zip of the whole shebang, if you like; otherwise just modify the stuff above...
good luck
rik