configure JNDI properties for LDAP server

[crossroadsk]

I have a problem in configuring JNDI properties for LDAP server

i created jndi.properties file in the current directory where i'm running a simple java code.

jndi.properties file which i created consists the following:
java.naming.fac tory.initial=co m.sun.jndi.ldap .LdapCtxFactory
java.naming.pro vider.url=ldap://localhost:389

and i'm using j2eeRI 1.3 to run the following code:
filename : JNDILookupAny.j ava
----------------------------------------------------------------------------------------------
import javax.naming.*;

public class JNDILookupAny
{
public static void main(String args[])
{
try{
if(args.length! =1)
{
System.err.prin tln("Usage : JNDILookupAny JNDIName");
System.exit(1);
}
Context ic = new InitialContext( );
Object o = ic.lookup(args[0]);
System.out.prin tln(args[0]+" = "+o);
}
catch(NamingExc eption ne)
{
System.err.prin tln(ne);
System.exit(1);
}
catch(ClassCast Exception cc)
{
System.err.prin tln(cc);
System.exit(1);
}

}
}
----------------------------------------------------------------------------------------------
I got a CommunicationEx ception:connect ion refused ... i tried changing port but the problem remains same.

help me!!!!!!!!!!!!! !!!!!!!!!!!1