I have an application using Wildfly 8.1/Hibernate/Microsoft Sql Server. When the application have some few concurrent user sessions the application stucks in Wildfly and we can not neither go ahead in the session nor open new user sessions. Other applications running over Wildfly keep working fine. During this state is not possible disable the application in wildfly management runtime console; it seems that Wildfly stops to handle requests for the application. The sql statement used to open new user session is printed in wildfly debug output file but anything else happens.
The data source pool shows that there are available connections yet.
Only a Jboss restart does to restore a application to the normal operation.
upgrade to 8.2