JBossTS, the transaction manager used in JBossAS, supports automatic recovery of XAResources obtained from XADataSources i.e. for most databases. This is usually done by looking up the datasource from JNDI. However, this does not work correctly in JBossAS, as the object the app server publishes to JNDI does not actually implement the XADataSource interface. We therefore need a modified version of the recovery code that pulls datasource configuration information from the app server internals, in order to avoid having to duplicate the information in the -ds.xml file. Without this there will be no automatic recovery for crashed transactions involving xa resources obtained via the app server. see issue-tracker 158477