Hi I am attempting to build XWiki from source with the end goal of using a debugger on it and face the following problem: After a successful build with maven, when I deploy the war archive and browse to xwiki, I get the following error: javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: Hibernate Dialect must be explicitly set After deployment, I then edited hibernate.cfg.xml in the deployed war and added a datasource for an xwiki database, and this made the error disappear. Now, I would like to do this at "compile time" already, so that a default hypersonic database is used, and that xwiki works right after building and deploying the war, without any manual intervention needed after building. I hope it's more or less clear what I want... Thanks.