RMI Activatable (unable to obtain activation system)

Question

Hello, I am new to forum... I have a simple rmi activation program.. Before writing program,I have checked some books and example in the sun site...
Before starting to program, I command "start rmiregistry" and
rmid -J-Djava.security.policy=rmi.policy -J-Dsun.rmi.activation.execPolicy=none
Up to here ,everything is Ok.
However,when I started to Setup program .I got the error Unable to obtaion activation system....
Following my codes:
my remote object...package impl.server;
import java.rmi.*;
import araclass.Kitapcik;
import araclass.Soru;
public interface Sinav extends Remote{
     Kitapcik bilgileriGetir() throws RemoteException;
     String sorulariGetir(Soru soru) throws RemoteException;
package impl.activate;
import impl.server.Sinav;
import java.rmi.*;
import java.rmi.activation.*;
import araclass.Kitapcik;
import database.Database;
import araclass.Soru;
public class SinavYordam extends Activatable implements Sinav{
     Database data;
     public SinavYordam(ActivationID id,MarshalledObject data) throws RemoteException{
          super(id,0);
     public Kitapcik bilgileriGetir(){
          data=new Database();
          data.baglan();
          Kitapcik kitap=data.kitapcikGetir(2);
          data.kapat();
          return kitap;
     public String sorulariGetir(Soru soru){
          String sor="";
          data=new Database();
          data.baglan();
          sor=data.soruGetir("Soru_Getir", soru.soru_no, soru.tabloAdi);
          data.kapat();
          return sor;
     public String[] siklariGetir(Soru soru){
          String[] sik;
          data=new Database();
          data.baglan();
          sik=data.siklariGetir("Soru_Getir", soru.soru_no, soru.tabloAdi);
          data.kapat();
          return sik;
}and lastly setup program,
import impl.server.Sinav;
import java.rmi.*;
import java.rmi.activation.*;
import java.util.Properties;
import java.util.prefs.Preferences;
public class SinavServer {
     public SinavServer(){
     public static void main(String[] args) throws Exception{
               System.setSecurityManager(new RMISecurityManager());
     Properties prop=new Properties();
        prop.put("java.security.policy","/workspace1/SINAV");
           ActivationGroupDesc.CommandEnvironment  cmd=null;
           ActivationGroupDesc grpdesc=new ActivationGroupDesc(prop,cmd);
          ActivationGroupID id=ActivationGroup.getSystem().registerGroup(grpdesc);
          String location="file:/workspace1/SINAV";
          ActivationDesc desc=new ActivationDesc(id,"impl.activate.SinavYordam",location,null);
          Sinav sin=(Sinav)Activatable.register(desc);
          Naming.rebind("Sinav", sin);
} Thanks in advance..

Answer 1

Actually, I got two diffirent exception in an interesting order.. I mean one day I got the following the error;
Exception in  thread "main"  java.Access.Security.ControlException: access denied <java.io.FilePermission \\c\workspace1\SINAV read>
at java.security.AccessControlContext.checkPermissionthat goes on...
The other day ,
Unable to obtain activation system exception today I could not have got so far. If I got, I would post.
So anyone who I have an idea of this problem...
Thanks in advance...