The blog http://dev.vaadin.com/wiki/Articles/ClojureScripting
describes how to write a simple Vaadin app in Clojure, using lein-war,
a web.xml with lots of init params, and a custom servlet written in
Java. I realized that it must be possible to get rid of the Java
servlet class that the blogger suggests, and sure enough, using gen-
class it was possible to get a working Vaadin sample using only
Clojure plus a small web.xml. It still uses lein-war, though. The code
is available here: https://github.com/ulsa/cljvaadin

The servlet is quite complex:
http://grepcode.com/file/repo1.maven.org/maven2/com.vaadin/vaadin/6.6.0/com/vaadin/terminal/gwt/server/AbstractApplicationServlet.java/?v=source

Is there any hope of getting rid of the servlet altogether, and
somehow get a Ring handler to perform whatever Vaadin stuff that needs
to be done on the server?

Even if we're stuck with the servlet, is there a more agile way of
developing such an app than running 'lein uberwar' and deploying the
war to Tomcat?

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