code: private static void setSLF4jAvailable(boolean slf4jAvailable) {
          if ((SLF4jAvailable != null && SLF4jAvailable == true) && slf4jAvailable == false) {
              Logger.getAnonymousLogger().warning("Switching off SLF4j availability. Usually means that SLF4j was found but exception was thrown during it's usage");
          }
  
          SLF4jAvailable = slf4jAvailable;
      }
docs: Standard Setter function.
  Informs if SLF4j availability was set from true into false
  
  @param slf4jAvailable new SLF4j availability flag