code: private static ObjectSchema readSchema(String url, String user, String pass,
              SyntaxToJavaClass syntaxToJavaClass, Set<String> binarySet, Set<String> objectClasses) 
          throws NamingException, ClassNotFoundException {
          
          // Set up environment 
          Hashtable<String, String> env = new Hashtable<String, String>();
          env.put(Context.PROVIDER_URL, url);
          env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
          if (user != null) {
              env.put(Context.SECURITY_PRINCIPAL, user);
          }
          if (pass != null) {
              env.put(Context.SECURITY_CREDENTIALS, pass);
          }
  
          DirContext context = new InitialDirContext(env);
          DirContext schemaContext = context.getSchema("");
          SchemaReader reader = new SchemaReader(schemaContext, syntaxToJavaClass, binarySet);
          ObjectSchema schema = reader.getObjectSchema(objectClasses);
          
          if (LOG.isDebugEnabled()) {
              LOG.debug(String.format("Schema - %1$s", schema.toString()));
          }
          
          return schema;  
      }
docs: Bind to the directory, read and process the schema