Hi,
this is of any concern to you only if you're using a 4.6.0-SNAPSHOT.
If you built your agent from code prior to commit
2910d155e509b6ebccdc9483a70b2910bdf0133c (which is a fix for
http://bugzilla.redhat.com/show_bug.cgi?id=907558), you need to rebuild at
least modules/core/plugin-api and modules/plugins/jboss-as-7 and put them in
your agent in lib or plugins respectively.
Or alternatively, you just rebuild everything and reinstall your agent.
Without that, you can see
java.lang.NoSuchMethodError:org.rhq.modules.plugins.jbossas7.AS7CommandLine.isArgumentsParsed()
in your agent.log coming from the AS7 plugin.
Cheers,
Lukas