[jboss-as7-dev] Better handling of transaction leaks?

While looking into a test failure I noticed that currently user applications can end up leaking transactions (associated with the invocation thread): Servlet { doGet() { UserTransaction.begin(); doSomeOp(); fail(); // no tx rollback/commit } } Subsequent transactions on that thread can lead to failures and other sorts of issues. Looking back at previous versions of AS, we had a valve http://anonsvn.jboss.org/repos/jbossas/trunk/tomcat/src/main/java/org/jbo... which used to cleanup (and log an error) about the leaking transactions. Do we want something similar for AS7? Also, are there other "entry points" (like servlets for web requests) where such leaks can happen and needs to be taken care off? -Jaikiran