Hi, I'm struggling to use Byteman with my helper class on EAP. I hit two problems:

• All of jars helper class depends on must be listed in -javaagent argument with sys: prefix
  • For example, when your rule introspects com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple#enlistResource(XAResource,Object[]) and your helper receives TransactionImple object as a parameter, then sys:/path/to/jbossjts-jacorb.jar must be in the argument.
• "IllegalArgumentException: argument type mismatch" is thrown
  • Even if you list the jar as above, helper hits this error due to the TransactionImple object can't be recognized as a expected class type. I guess this is caused by the class loader difference, the helper class is loaded by sys loader but the class for actual TransactionImple object is loaded by jbossts module loader.

Does anyone hit this problem and found any solution? I gave up to use helper class and write all action into rule file for now. It doesn't hit above two, so a bit better than receiving all of arguments as Object and use reflection, or serialize/deseriarlize those.

Thanks,

Tomo