ThreadLocal variables are not cleared at the end of execution of the thread.

I am deploying a web application under Jboss AS 5.1.0.GA and in my application, I'm using some java.lang.Threadlocal and java.lang.InheritableThreadLocal variables. Threadlocal variables should be cleared at the end of execution of the thread. In my case, since jboss is using a thread pool, the Threadlocal variables are not cleared.

In https://issues.jboss.org/browse/JBAS-8389, i saw that this issue has been resolved in JBoss AS 4.2.3.GA, i am using JBoss AS 5.1.0.GA and i still have the problem.