Hi, I think I found your problem.
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<version>1.0-beta-1</version>
You need to use the <version>1.0-SNAPSHOT</version> cf. http://mojo.codehaus.org/findbugs-maven-plugin/changes-report.html The changes-report is very useful and IMHO it's not use enough. HTH, Rémy
