11:04:59,285 WARN [org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler] AMQ219007: error acknowledging message ServerMessage[messageID=8656249762,durable=false,userID=nul l,priority=4, bodySize=512, timestamp=Wed Jan 04 11:04:59 CET 2017,expiration=Wed Jan 04 11:05:49 CET 2017, durable=false, address=test.performance.queue,properties=TypedProperties[JMS_AMQP_ ORIGINAL_ENCODING=5,JMS_AMQP_FirstAcquirer=true,JMSXDeliveryCount=1,JMSXGroupSeq=0,JMS_AMQP_HEADER=true,JMS_AMQP_HEADERPRIORITY=true,JMS_AMQP_HEADERDURABLE=true]]@1091554821, Cannot find ref to ack 8656249762: ActiveMQAMQPIllegalStateException[errorType=ILLEGAL_STATE message=AMQ219007: error acknowledging message ServerMessage[messageID=8656249762,durable=false,userID=null,prio rity=4, bodySize=512, timestamp=Wed Jan 04 11:04:59 CET 2017,expiration=Wed Jan 04 11:05:49 CET 2017, durable=false, address=test.performance.queue,properties=TypedProperties[JMS_AMQP_ORIGIN AL_ENCODING=5,JMS_AMQP_FirstAcquirer=true,JMSXDeliveryCount=1,JMSXGroupSeq=0,JMS_AMQP_HEADER=true,JMS_AMQP_HEADERPRIORITY=true,JMS_AMQP_HEADERDURABLE=true]]@1091554821, Cannot find ref to ac k 8656249762] at org.apache.activemq.artemis.protocol.amqp.proton.ProtonServerSenderContext.onMessage(ProtonServerSenderContext.java:516) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.jar:] at org.apache.activemq.artemis.protocol.amqp.proton.AMQPConnectionContext$LocalListener.onDelivery(AMQPConnectionContext.java:421) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.ja r:] at org.apache.activemq.artemis.protocol.amqp.proton.handler.Events.dispatch(Events.java:97) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.jar:] at org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.dispatch(ProtonHandler.java:345) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.jar:] at org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.access$000(ProtonHandler.java:43) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.jar:] at org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler$1.run(ProtonHandler.java:62) [artemis-amqp-protocol-1.5.1.amq-700001-redhat-1.jar:] at org.apache.activemq.artemis.utils.OrderedExecutorFactory$OrderedExecutor$ExecutorTask.run(OrderedExecutorFactory.java:101) [artemis-commons-1.5.1.amq-700001-redhat-1.jar:1.5.1.amq -700001-redhat-1] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_111] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_111] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_111]