code: public void setCredentialsResolver(String className) throws Exception {
  
          String originalClassName = className;
          className = className.trim();
          Class<?> resolverClass = Class.forName(className);
          m_credentialsResolver = (I_CmsCredentialsResolver)(resolverClass.newInstance());
          m_credentialsResolverClass = originalClassName;
      }
docs: Sets the credentials resolver class.<p>
  
  @param className the name of the credentials resolver class
  
  @throws Exception if something goes wrong