Terracotta added (or re-added?) a feature that lets you define classes to be instrumented including all their sub types. This makes configuring Wicket applications with Terracotta a lot easier, especially now that we introduced a tagging interface IClusterable for this purpose.
This post was getting out of date, particularly the configuration bit, which is now much easier. In order not to confuse people, I thought it would be better to remove it.