Thread deadlock

Our users experience random freezes in our vaadin application (version 7.7.3). We have tried to figure out the root cause of this issue but with no luck. By analyzing the situations with JMC we’ve found that thread deadlocks occurs. I have attached a screenshot from JMC and a thread dump of the affected threads. In the stack traces, there is only one row referencing a class in our name space (se.reforce) and that is our ApplicationServlet, whos service method only calls super.service(). We frequently use asynchronous service calls and push (atmosphere).

29003.txt (12.3 KB)