Get rid of JTA warning message for WebLogic

This is the second time I ran into the JTA exceptions. Basically, you will get this message every one minute when running your EJB on any version of WebLogic server:

<Warning> <JTA> <BEA-110486> <Transaction BEA1-05576B5644FBD4F5B49F cannot complete commit processing because resource [weblogic.jdbc.wrapper.JTSXAResourceImpl] is unavailable. The transaction will be abandoned after 67,910 seconds unless all resources acknowledge the commit decision.>

Last I did google it, get rid of it, and eventually forget about it at all. Now it's a good chance for me to pick it up and record it down. Hopefully next time I can handle it in no time without spending half an hour wondering around. I tried different ways like restart server, uninstall/reinstall application, etc. No luck at all.

This warning message is because something is wrong in your code, specifically of transaction. There must be some of the transaction still keep opening after some exception happens or similar alike. As a result, the server complain that there is a transaction still running which no one seems to be using it at all.

In order to get rid of this ugly message, just go to your domain: <your-domain>/servers/AdminServer/data/store/default, there should be a file like "_WLS_ADMINSERVER000000.DAT" there. The number will random. If you delete this file, and restart the server, problem solved!