XWiki is a really cool Wiki built on top of proven technologies like the Radeox Wiki engine, Hibernate, Velocity and Struts.
The only thing I missed from the start was an index based search. Having some experience with Lucene I thought this would fit in well. At this place I’d like to thank the author of XWiki, Ludovic Dubost, for helping me with the xwiki side, and for the early tests he did in his large testing environment.
More info about the plugin can be found here.