The zxingvaadin component is now working for me under Vaadin 23 (subject to Nikola's fix) so this component is no longer required but may be of interest to a few, see: https://vaadin.com/directory/component/zxingvaadin
The zxingvaadin component is now working for me under Vaadin 23 (subject to Nikola's fix) so this component is no longer required but may be of interest to a few, see: https://vaadin.com/directory/component/zxingvaadin