code: public static void init(final String _runLevel)
          throws EFapsException
      {
          RunLevel.ALL_RUNLEVELS.clear();
          RunLevel.RUNLEVEL = new RunLevel(_runLevel);
      }
docs: The static method first removes all values in the caches. Then the cache
  is initialized automatically depending on the desired RunLevel
  
  @param _runLevel   name of run level to initialize
  @throws EFapsException on error