[ https://issues.jboss.org/browse/JBTM-3195?page=com.atlassian.jira.plugin.... ] Thomas Jenkinson commented on JBTM-3195: ---------------------------------------- The key element is from: {code} "AsyncStoreThread" #21 daemon prio=5 os_prio=0 tid=0x00007fb16c9a6000 nid=0x19a1 runnable [0x00007fb0cca37000] java.lang.Thread.State: RUNNABLE at java.lang.Throwable.fillInStackTrace(Native Method) at java.lang.Throwable.fillInStackTrace(Throwable.java:783) - locked <0x000000059236c830> (a java.util.NoSuchElementException) at java.lang.Throwable.<init>(Throwable.java:250) at java.lang.Exception.<init>(Exception.java:54) at java.lang.RuntimeException.<init>(RuntimeException.java:51) at java.util.NoSuchElementException.<init>(NoSuchElementException.java:46) at java.util.LinkedList.removeLast(LinkedList.java:283) at com.arjuna.ats.internal.arjuna.objectstore.AsyncStore.doWork(CacheStore.java:670) - locked <0x0000000080232220> (a java.util.LinkedList) - locked <0x0000000080232010> (a [Ljava.util.LinkedList;) at com.arjuna.ats.internal.arjuna.objectstore.AsyncStore.run(CacheStore.java:606) - locked <0x00000000802322e0> (a java.lang.Object) {code} I saw this as appearing in a loop during local testing. -- This message was sent by Atlassian Jira (v7.13.8#713008)