Java EE (Java Enterprise Edition) General Discussion

try {  	    
    System.out.println("about to retrieve initial context.");    
    java.util.Properties p = new java.util.Properties();    
    p.put(Context.PROVIDER_URL, "iiop://localhost:901");    
    p.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.WsnInitialContextFactory");    
    InitialContext initContext = new InitialContext(p);
    System.out.println("initial context has been created.");	
}catch (Exception e) {         
    e.printStackTrace();
}

I am getting this error