Hi, I am a beginner in java. I am trying to create a rmi client- database server application in java, but I am struggling. The client and the database server are to work well even if placed in different computers, that is in separate packages.
My server seems to be working fine, but when I run my client I keep on getting the error: java.security.AccessControlException: access denied ("java.net.SocketPermission" "127.0.0.1:1099" "connect,resolve").

I read on security policies recently and I don't really know how to work with it in netbeans. I read that I am to create a security policy file and place it in the server package and client package too. I did so, I created a txt file with my policy and placed a copy of it in my netbeans projects, inside the server and client src file and in the package respectively. My policy looks as follows:

Code:

---

grant {
  permission java.security.AllPermission;
};

---

My server looks as follows:

Code:

---

package wildanimalsserver;
import java.rmi.RMISecurityManager;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
/**
 *
 * @author CTI
 */
public class WildAnimalsServer {
 
    public WildAnimalsServer() {
    }
    public static void main(String [] args) {
        try {
            RMISecurityManager security = new RMISecurityManager();
            System.setSecurityManager(new RMISecurityManager());
            //Creating and getting the reference to the RMI registry
            Registry registry = LocateRegistry.createRegistry(1099);
           
            //Instantiating the object
            AnimalObject ao = new AnimalObject();
            //Registering the object
            registry.rebind("Animal", ao);
            System.out.println("Server ready...");
        } catch (Exception e) {
            System.out.println(e);
        }
    }
   
}

---

.. and my client:

Code:

---

package wildanimalsclient;
import java.rmi.RMISecurityManager;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
/**
 *
 * @author CTI
 */
public class WildAnimalsClient {
 
    /**
    * @param args the command line arguments
    */
    public static void main(String[] args) {
    try {
            RMISecurityManager security = new RMISecurityManager();
            System.setSecurityManager(new RMISecurityManager());
            // Get reference to rmi registry server
            Registry registry = LocateRegistry.getRegistry(1099);
            // Looking up for the server object
            IRemoteAnimal ra = (IRemoteAnimal)registry.lookup("Animal");
            System.out.println("Client ready and responding...");
 
        } catch (Exception e) {
            System.out.println(e);
        }     
    }
}

---

My Server consists of:
Animal.java(entity class mapping to database)
IRemoteanimal.java(RMI application interface)
AnimalObject.java(Animal object to be distributed)
WildAnimalsServer.java(server application)
WildAnimalsDBmanager.java(manage connection to database)
AnimalRepository.java(provides crud operations)

And my client:
Animal.java(same as server)
IRemoteanimal.java(same as server)
WildAnimalsClient.java(client application calling RMI server)

Could you find the answer to your problem? I'm beginning to work with RMI and I'm facing the same problem: java.net.SocketPermission

Let me know if you find any solution.

Thanks,

Marcos Alves
[email protected]