Marc even mentioned it in his newsletter:
JBoss Book Offered in German ? Sacha Labourey, European GM of JBoss, will be present at the book launch of Heiko Rupp's JBoss Server-Handbuch für J2EE-Entwickler und Administratoren, 10 May 2005. To purchase this book, please visit http://www.dpunkt.de/buch/3-89864-318-2.html.
The party is hosted by JUGS, the local Java user group in conjunction with bwcon:
The party is free of charge. If you want to join in, please send a registration email to firstname.lastname@example.org
The start time is nom 18:30.