Tomcat & RMI

Question

Hi,
I'm new in rmi.
I'm tring to run this: http://java.sun.com/docs/books/tutorial/rmi/running.html
I have one computer:
server side: Tomcat = port 80
c:\Tomcat\webapps\rmi\WEB-INF\classes\compute.jar
c:\Tomcat\webapps\rmi\WEB-INF\classes\ComputeEngine.class
c:\Tomcat\webapps\rmi\WEB-INF\classes\server.policy
c:\Tomcat\webapps\rmi\WEB-INF\classes\client\Pi.class
client side:
D:\MyJava\RMI\compute.jar
D:\MyJava\RMI\client.policy
D:\MyJava\RMI\engine\ComputeEngine.class
D:\MyJava\RMI\compute\compute.class
D:\MyJava\RMI\compute\task.class
D:\MyJava\RMI\client\Pi.class
D:\MyJava\RMI\client\ComputePi.class
server.policy:
grant codeBase "file:/c:/MyJava/RMI/"  {
     permission java.security.AllPermission;
};client.policy:
grant codeBase "file:/c:/MyJava/RMI/" {
    permission java.security.AllPermission;
};CLASSPATH in my computer:
D:\Programs\Java\jdk-1_5_0_08\bin;
C:\Tomcat\webapps\rmi\WEB-INF\classes\compute.jar;
I'm runing this:
start rmiregistry
java -cp D:\MyJava\RMI;c:\Tomcat\webapps\rmi\WEB-INF\classes\compute.jar
-Djava.rmi.server.codebase=file:/c:/Tomcat/webapps/rmi/WEB-INF/classes/compute.jar
-Djava.rmi.server.hostname=localhost
-Djava.security.policy=c:\Tomcat\webapps\rmi\WEB-INF\classes\server.policy engine.ComputeEngine
I get this error:
java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
And in this link write:
"Before you execute rmiregistry, you must make sure that the shell or window in which you will run rmiregistry either has no CLASSPATH environment variable set or has a CLASSPATH environment variable that does not include the path to any classes that you want downloaded to clients of your remote objects. "
I have one computer for server & client..
Thank's alotttt
Yael

Answer 1

Hi,
The server is running good to me now, but I get error in the client runing:
java -cp D:\MyJava\RMI;c:\Tomcat\webapps\rmi\WEB-INF\classes\compute.jar
     -Djava.rmi.server.codebase=file:/c:/Tomcat/webapps/rmi/WEB-INF/classes/
     -Djava.security.policy=client.policy
     client.ComputePi localhost 45java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
this line:
Compute comp = (Compute) registry.lookup(name);
package client;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.math.BigDecimal;
import compute.Compute;
public class ComputePi {
    public static void main(String args[]) {
        if (System.getSecurityManager() == null) {
            System.setSecurityManager(new SecurityManager());
        try {
            String name = "Compute";
            Registry registry = LocateRegistry.getRegistry(args[0]);
            Compute comp = (Compute) registry.lookup(name);
            Pi task = new Pi(Integer.parseInt(args[1]));
            BigDecimal pi = comp.executeTask(task);
            System.out.println(pi);
        } catch (Exception e) {
            System.err.println("ComputePi exception:");
            e.printStackTrace();
}Could you show me what to write please? I'm new in this topic.
Yael