code: private void parseActions(String actions)
     {
        boolean exclusionListNeeded = actions != null && actions.startsWith("!");
        if (exclusionListNeeded)
           actions = actions.substring(1);
  
        Object[] methodInfo = canonicalMethods(actions);
        if (exclusionListNeeded)
        {
           this.httpExceptionList = (TreeSet<String>) methodInfo[0];
           this.httpExceptionString = (String) methodInfo[1];
        }
        else
        {
           this.httpMethods = (TreeSet<String>) methodInfo[0];
           this.httpMethodsString = (String) methodInfo[1];
        }
     }
docs: Private -------------------------------------------------------