// set up environment to access the server
Properties env = new Properties();
env.put( Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory" );
env.put( Context.PROVIDER_URL, "ldap://" + ldapServerName + "/" );
env.put( Context.SECURITY_PRINCIPAL, rootdn );
env.put( Context.SECURITY_CREDENTIALS, rootpass );
try {
// obtain initial directory context using the environment
DirContext ctx = new InitialDirContext( env );
// now, create the root context, which is just a subcontext
// of this initial directory context.
ctx.createSubcontext( rootContext );
} catch ( NameAlreadyBoundException nabe ) {
System.err.println( rootContext + " has already been bound!" );
} catch ( Exception e ) {
System.err.println( e );
}