Yeah, it is very helpful, Thanks ;) here are 2 questions: 1. We need test RA behavior also? Like in the first bullet on page 230 (10.1 paragraph 4) it says that: anonymous wrote : reuse them efficiently across different resource adapters deployed in its runtime environment We can test this by adding 2 fake RAs. 2. Some description is "maybe" like anonymous wrote : An application server may disallow resource adapters from creating their own threads based on its security policy setting, enforced by a security manager. We will support this feature by disallowing creating thread in the RA, or we give a property that user can configure it? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212837#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...