public boolean isAvailable(FunctionalityContext context, Person person) {
public boolean isAvailable(FunctionalityContext context) {
    public boolean isAvailable(FunctionalityContext context, Person person) {        try {            return getGroup().isMember(new GroupContextFromFunctionality(context), person);        } catch (GroupDynamicExpressionException e) {            throw e;        } catch (Exception e) {            throw new GroupDynamicExpressionException(e,                    "accessControl.group.expression.evaluation.error");        }    }