When I run FindBugs on my project via Maven, I get lots of these:
Can't use annotations when running in JDK 1.4 mode!
How do I fix that? Couldn't find anything in the manual.
I believe you are missing the targetJdk element in the plugin configuration, like in below snippet.
<reporting>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<version>2.0.1</version>
<configuration>
<targetJdk>1.5</targetJdk>
</configuration>
</plugin>
</plugins>
</reporting>