We are observing same issue as [XNIO-197] Leaking org.xnio.nio.WorkerThread - JBoss Issue Tracker which was reported long time back .we are currently using using wildfly 10.0.0. This bug was marked as resolved for jboss-7.1.1. Is this resolved for wildfly 10 or do we need to upgrade to higher versions. which version xnio i should upgrade to resolve this issue.