Sporadic NPE in KeyAffinityServiceImpl

The NPE appears not often, unfortunality with enabled TRACE logging, it never appears I'll keep trying to get TRACEs.

Exception in thread "pool-70-thread-1" java.lang.NullPointerException
at org.infinispan.affinity.KeyAffinityServiceImpl.getAddressForKey(KeyAffinityServiceImpl.java:347)
at org.infinispan.affinity.KeyAffinityServiceImpl.access$700(KeyAffinityServiceImpl.java:59)
at org.infinispan.affinity.KeyAffinityServiceImpl$KeyGeneratorWorker.generateKeys(KeyAffinityServiceImpl.java:270)
at org.infinispan.affinity.KeyAffinityServiceImpl$KeyGeneratorWorker.run(KeyAffinityServiceImpl.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)