help to avoid SecuriyAcessControl Exception

[Qasim Shabbir]

hi
i write a simple rmi program which throw exception :

Exception in thread "main" java.security.AccessControlException: access
denied (
java.net.SocketPermission qasim resolve)
at java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:272)
i dont know how to avoid this exception i do following changes in java.policy but its not working
grant codeBase "file:///f:/java/*" {
permission java.security.AllPermission;
};
my code is reside in f:\java\bank\
please help me to prevent this error..
thank in advance..
Qasim Shabbir

[Varun Rupela]

Hi:
Forgive me Qassim for really not replying. Actually, I am facing the very same problem...only our java.policy files look a little different. Here's the exception that I am getting:

Security not set
ComputeEngine exception: access denied (java.net.SocketPermission host resolve) 
java.security.AccessControlException: access denied (java.net.SocketPermission host resolve) 
        at java.lang.Throwable.fillInStackTrace(Native Method) 
        at java.lang.Throwable.<init>(Throwable.java:94) 
        at java.lang.Exception.<init>(Exception.java:42) 
        at java.lang.RuntimeException.<init>(RuntimeException.java:47) 
        at java.lang.SecurityException.<init>(SecurityException.java:39) 
        at java.security.AccessControlException.<init>(AccessControlException.java:57) 
        at java.security.AccessControlContext.checkPermission(Compiled Code) 
        at java.security.AccessController.checkPermission(Compiled Code) 
        at java.lang.SecurityManager.checkPermission(Compiled Code) 
        at java.lang.SecurityManager.checkConnect(SecurityManager.java:1019) 
        at java.net.InetAddress.getAllByName0(InetAddress.java:565) 
        at java.net.InetAddress.getAllByName0(Compiled Code) 
        at java.net.InetAddress.getByName(Compiled Code) 
        at java.net.Socket.<init>(Socket.java:98) 
        at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:29) 
        at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Compiled Code) 
        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:497) 
        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:194) 
        at sun.rmi.transport.tcp.TCPChannel.newConnection(Compiled Code) 
        at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322) 
        at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source) 
        at java.rmi.Naming.rebind(Naming.java:165) 
        at engine.ComputeEngine.main(ComputeEngine.java:31) 

The java.policy file looks like this:

grant { 
        permission java.security.AllPermissions; 
}; 

And the first few lines of server program code look like this:

if (System.getSecurityManager() == null) 
{
System.out.println("Security not Set");
System.setSecurityManager(new RMISecurityManager());
}
else
{
System.out.println("Security Set");
}

The command to start the server looks like this:

java -Drmi.server.codebase=URL_Codebase -Djava.security.policy=java.policy server_pgm

I feel like killing the exception now....
Thank you

[Junaid Bhatra]

Varun,
Seems like for some reason the runtime can't find your java.policy file. Try modifying the default policy file jre/lib/security/java.policy and see if the exception goes away?