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How can I execute a Vaadin app as an ".exe" in Windows without having to open a browser. Is there a way to embed it in a customized browser (no address bar, no buttons, ...) ?
You can use prism which uses firefox engine.Or you can use the chrome "create application shortcut" feature as explained here (in section "Create shortcuts for other apps")
You could create an java app with a light embedded webserver like Jetty.