Thanks and I totally agree with your response.
I recognized that hibernate has sophisticated use of findbugs, becaues I needed to rebuild it for myself applying some patches (for playframework) and struggled with those findbugs and clean code rules. They really could find such neve used local variable definitions and reject/error the build process in that case. If you open the file with a modern ide like intellij (maybe eclipse too) it will point that out by default (at least by special color of that variable).