can you paste server.log from deployment, to see what is really going on.
could it be that your app needs run on standalone-full.xml config?
Thank you for your answer, i did not expect moving from standalone to standalone-full would do the job, but it did it and it works perfectly. However, i do not understand why this is the case. I guess i lack some configuration now in 10 which came by default with 9? If you need the server.log to analyze further and trace the route of the problem, tell me.