I've spent a lot of the day struggling to find a setup which will allow me to write extension modules for eXist. This is probably a fairly simple issue, but I'm new to Java so I'm having problems. I tried both in Eclipse and in NetBeans, and got a bit closer with the latter. The issue is figuring out how to link in the eXist source, and the libraries on which it depends such as apache and anntlr files. So far I haven't found a setup which enables my IDE to successfully build my classes while finding all of the related classes in the various locations.

Finally, I went through and added all the JAR files in the eXist tree to the project. That seems to have helped a bit, but it's still failing to find some stuff (QName and SequenceType). Back to this tomorrow.