DWR 0.6 Released. AJAX and XMLHttpRequest made easy
http://www.getahead.ltd.uk/dwr/

Loads of new features in this release including support for automatic
marshalling of DOM trees, better Spring support, better browser support
and optional commons-logging support. The full changelist includes:

* New ScriptedCreator so you can use Groovy (or any other language
  supported by BSF), etc to configure new interface objects.
* Wider support for browsers. DWR now works with Firefox, Safari, IE,
  Konqueror, Opera, and Mozilla.
* The SpringCreator will now read from bean files configured in web.xml
* Logging via commons-logging if it is avaiable, or the old Servlet.log
  method if not.
* New converters for DOM, JDOM, XOM and DOM4J so you can pass DOM trees
  between the client and server without thinking
* Fix to support Jetty
* URL tweak to provide more info to web log analysers
* New ContextCreator to allow remoted objects to be stored in the
  servlet application context
* 2 New utilities in DWRUtil: Range selection, and return event handling
* There is also better documentation, error messages that are easier to
  decipher, performance and other bug fixes

See:
http://www.getahead.ltd.uk/dwr/