docs: protected static void validateExpressions(FacesContext context, UIComponent source, String expressions, String[] splittedExpressions) {
  
          if (context.isProjectStage(ProjectStage.Development)) {
              if (splittedExpressions.length > 1) {
                  if (expressions.contains(SearchExpressionConstants.NONE_KEYWORD)
                          || expressions.contains(SearchExpressionConstants.ALL_KEYWORD)) {
  
                      throw new FacesException("It's not possible to use @none or @all combined with other expressions."
                              + " Expressions: \"" + expressions
                              + "\" referenced from \"" + source.getClientId(context) + "\"");
                  }
              }
          }
      }