hi all,
we have developped an app under tomcat with threadlocal strategy.
All works fine.
When we integrate it on 9IAS we get this

[code]
/**
* @see javax.servlet.Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
*/
public void doFilter(ServletRequest request,ServletResponse response, FilterChain chain) throws IOException,ServletException
{
if (hibernateHolder.get() != null) {
Session sess = (Session)hibernateHolder.get();
if (sess != null)
{
hibernateHolder.set(null);
try
{
sess.close();
}
catch (HibernateException ex) { throw new ServletException(ex); }
}

throw new IllegalStateException("A session is already associated with this thread!"
+ "Someone must have called getSession() outside of the context "
+ "of a servlet request.");
}
try
{
chain.doFilter(request, response);
}
finally
{
/* La session hibernate existe, elle a

did you checked that your filter is called only once per request?
( can happen in when you jas:include or whatever )
( placing some guard on request and verifying its presence helps )

and threads can be reused - so your threadlocal is not guaranted to be fresh and smelly....