@Override public void execute() { MainWindow.getInstance().setStatus("Begin validation"); Main.log("Begin validation"); for (IDiagramValidator validator : validators) { validator.execute(); } if (validationList.getValidationItems().isEmpty()) { MainWindow.getInstance().setStatus("Validation success"); Main.log("Validation success"); } else { MainWindow.getInstance().setStatus("Validation fail"); Main.log("Validation fail"); } }