Finally, I’ve got Tapestry 5.1 working in Google App Engine (GAE): http://tapestry-test.appspot.com/ (this is the Tapestry 5.1 integration test application)
It was some kind of a way…
The main problem was the Stax parser and the dependency to the Woodstox lib (see Tapestry in the Cloud and Tapestry 5.1 Woodstox).
First, I tried to use a standard Stax parser instead of Woodstox2. I tried this because we had some issues with running Tapestry in Appservers and having to add -Djavax.xml.stream.XMLInputFactory=com.ctc.wstx.stax.WstxInputFactory. This didn’t seem to work because Stax is kind of a mess and no implementation can hande DTDs.
The solution was to replace the Stax with a Sax parser. This was some work, but the parser works in is now in test at our company.
Then I decided to try to check GAE again and voila – it works. I’m happy.
.derkoe. 