java.security.policy,rmi java.security.policy访问被拒绝

I am new to RMI topic in java and i wana to create client server applicaiton using RMI,

i followed this tutorial found in this link : RMI Tutorial using eclipse

but i am using netbeans ,and here is server code:

import java.rmi.*;

import java.rmi.registry.LocateRegistry;

import java.rmi.registry.Registry;

import java.rmi.server.*;

public class AdditionServer {

public static void main (String[] argv) {

try {

if (System.getSecurityManager() == null)

{

System.setSecurityManager(new SecurityManager());

}

String policy="file:/home/user/NetBeansProjects/RMIServerSide/security.policy";

System.setProperty("java.security.policy",policy);

Addition Hello = new Addition();

System.out.println("test\n");

Registry reg=LocateRegistry.createRegistry(1099);

reg.rebind("rmi://localhost/ABC", Hello);

System.out.println("Addition Server is ready.");

}catch (Exception e) {

System.out.println("Addition Server failed: " + e);

}

}

}

and here security.policy :

grant codeBase "/home/user/NetBeansProjects/RMIServerSide/build/classes/" {

permission java.security.AllPermission;

};

then i run the rmiregistry & in the terminal.

then i run the server and here what is the output exactly :

Addition Server failed: java.security.AccessControlException: access denied ("java.util.PropertyPermission" "java.security.policy" "write")

Is there something i miss it, like a config for vm or something ???.....

解决方案

I had the same problem. I have fixed it following these steps:

I have created a policy file, I named it security.policy

with the following content

grant {

// Allow everything for now

permission java.security.AllPermission;

};

2- Add the following line of code just before binding the remote object to the rmiregistry.

System.setProperty("java.security.policy","file:./security.policy");