I am getting the same NoSuchMethodError as you got. There is only one version of TransformerCommon deployed, and it has the method - so I need to dig around a bit to figure out what's going on here
The NoSuchMethodError was due to some classes not having been loaded up yet causing JRockit to get confused. This has been fixed http://jira.jboss.com/jira/browse/JBAOP-299
I saw that in one of the unit tests as well. jrockit is apparently much lazier at loading referenced classes than the sun jdk.