[infinispan-dev] Hanging state transfer

Hi all, any idea or suggestion please? Thread dumps are attached. It's running two WildFly 9 instances, in "standalone" mode so I don't expect other JGroups channels to be open. I deploy an Hibernate Search application in them, and this simply starts a CacheManager. That hangs on start(). If I run the exact same test, with exact same Infinispan version (7.1.1.Final) on WildFly 8.2 + the as modules (embedded) distributed by the Infinispan release it works just fine. Wildfly 9 includes this Infinispan version, so the difference is that now I'm running the modules which are shipped with WildFly 9 directly: this should work for end users w/o additional downloads. Don't take the current master of WF9 as reference: there are some (other) problems with these modules, so I'm fixing them.. the other problems were classloader / Search / Hibernate related and I have patches for those, this run is using them. But this one I don't understand? Any idea of what to look for? It's probably caused by some extension point too much, or too few, but it's not giving a hint. Another notable difference, is that Infinispan 7.1.1.Final shipped with JGroups 3.6.1.Final - so that's what I'm using in the version which works - while WildFly 9 is using JGroups 3.6.2.Final. I've tried to patch WildFly9 to use the older JGroups but it didn't change the result. Thanks, Sanne