> > Another thing is, that in the last mail of the thread you referenced, > it's mentioned that there is bug in undertow. It will be fixed in undertow 1.4.7.Final. > So once it's possible to have Wildfly upgraded to this version, it > won't be needed to have try/catch block anymore. [JA] Can you point me to the undertow ticket? I seem to remember reading some ticket where they wanted to fix a similar issue but decided against as anyway there is a still a time window when the session can be invalidated by another thread.