hi,
this looks like problem in your application you are probably using two or more local transactional resources but you should be using XA datasources.
read all about this here: https://community.jboss.org/wiki/Multiple1PC
probably what you need is to configure XA datasources and use them, but it all depends on your use case.
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tomaz
That's what I did. I had xa datasources in my 5.5.1 ds.xml file. I just had to translate those into AS 7 xa datasources.
I used the management console to do this and it was quite easy!