I asume you are using https connections, we had the same problem and for my opinion it's this bug: https://issues.jboss.org/browse/XNIO-215
As a workaround (until the issue is fixed) we go back to http and so the problem is gone.
Yes, right we are using HTTPS and for us it's not an option to use HTTP instead.
There seems to be another bug issue referencing this problem: [WFLY-2778] CPU load at 99% with WildFly 8 CR1 - JBoss Issue Tracker
They have fixed something at [XNIO-215] Infinite Loops after connection establishment failure for HttpUpgrade with SSL - JBoss Issue Tracker and I build a patch version of the XNIO jars. With that, HTTPS is working for me, without problems.
Just out of curiosity, on what kind of server did you have those issues, Matthias? Was it some kind of cloud environment?
we manged to reproduce and hopefully fix this problem.
Fix was part of Xnio 3.2.0.Final which is now already part of WildFly upstream.
Just some background, problem only occurred on windows, which was the reason we didn't noticed it before.
Could you guys try with latest nightly builds any verify that fix is valid?
OK, we will check that, but our our environments are all linux boxes.
I checked it with the latest nightly on my Windows 7 and I think the issue is fixed.
But I have a new issue with a JSF error page wich I declare in web.xml
For each page not found a new thread hangs