code: @SuppressWarnings("unchecked")
    public E get()
    {
      Thread thread = Thread.currentThread();
      ClassLoader loader = thread.getContextClassLoader();
  
      Object value = null;
  
      for (; loader != null; loader = loader.getParent()) {
        if (loader instanceof EnvironmentClassLoader) {
          EnvironmentClassLoader envLoader = (EnvironmentClassLoader) loader;
  
          value = envLoader.getAttribute(_varName);
  
          if (value != null)
            return (E) value;
        }
      }
  
      return _globalValue;
    }
docs: Returns the variable for the context classloader.