Hi,
I just try it now and it works well.
Did you add the repository section for the codehaus repository in your pom ?
<repository>
<id>codehaus</id>
<name>Codehaus Repository</name>
<url> http://repository.codehaus.org/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
Otherwise you can also use the 1.0-SNAPSHOT [1].
In this case you need the codehaus snapshot repository
<repository>
<id>codehaus.snapshot</id>
<name>Codehaus Snapshot Repository</name>
<url> http://snapshots.repository.codehaus.org/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
Rémy
[1] http://mojo.codehaus.org/findbugs-maven-plugin/changes-report.html
