Vaadin alternative for heavily loaded UI
问题 Currently I am programming the Web Application based on Vaadin. I am quite happy with the learning cycle and the way how easy UI can be designed. In general pluses of Vaadin are: "Native" UI programming for Java users (component hierarchy / event listeners / drag & drop / validation). Out-of-box nice collection of components (tree / table / list / ...). The minuses are: Big and complex HTML output. That slows down the browser response time (also mentioned here and there) and leads to some