OIM 11GR2 Client API Login

String authConfigLoc = "C:/OIM/authwl.conf";
System
.setProperty("java.security.auth.login.config",
authConfigLoc);
System.setProperty("APPSERVER_TYPE", "wls");
Map<String, String> env = new Hashtable<String, String>();
env.put(OIMClient.JAVA_NAMING_PROVIDER_URL, providerURL);
env.put(OIMClient.JAVA_NAMING_FACTORY_INITIAL,
"weblogic.jndi.WLInitialContextFactory");
oimClient = new OIMClient((Hashtable<String,String>)env);
oimClient.login(userName, password.toCharArray());