private Constants constants = ((Constants) GWT.create(Constants.class));
public RuleVerifierManager() {
PrettyFormLayout form = new PrettyFormLayout();
form.addHeader("images/rule_verification.png", new HTML(constants.EditRulesVerificationConfiguration())); //NON-NLS
form.startSection(constants.AutomaticVerification());
final CheckBox enableOnlineValidator = new CheckBox();
enableOnlineValidator.setValue(WorkingSetManager.getInstance().isAutoVerifierEnabled());
form.addAttribute(constants.Enabled(), enableOnlineValidator );