[ https://issues.jboss.org/browse/WFLY-6420?page=com.atlassian.jira.plugin.... ] Jeff Mesnil resolved WFLY-6420. ------------------------------- Fix Version/s: 10.1.0.Final Resolution: Cannot Reproduce Bug I can not reproduce with laster WildFly master branch. Your test works as expected and there is no delay: {noformat} 17:04:44,455 INFO [ArtemisHornetQClientTest] [ 109]: Starting to send/receive using Artemis client API 17:04:44,592 INFO [ArtemisHornetQClientTest] [ 246]: * * * Sent a message 'foobar-0' to 'ActiveMQQueue[DLQ]' 17:04:44,596 INFO [ArtemisHornetQClientTest] [ 249]: * * * Sent a message 'foobar-1' to 'ActiveMQQueue[DLQ]' 17:04:44,598 INFO [ArtemisHornetQClientTest] [ 252]: * * * Sent a message 'foobar-2' to 'ActiveMQQueue[DLQ]' 17:04:44,603 INFO [ArtemisHornetQClientTest] [ 257]: * * * Sent a message 'foobar-3' to 'ActiveMQQueue[DLQ]' 17:04:44,607 INFO [ArtemisHornetQClientTest] [ 261]: * * * Sent a message 'foobar-4' to 'ActiveMQQueue[DLQ]' 17:04:44,670 INFO [ArtemisHornetQClientTest] [ 324]: * * * Received a message 'foobar-0' to 'ActiveMQQueue[DLQ]' 17:04:44,670 INFO [ArtemisHornetQClientTest] [ 324]: * * * Received a message 'foobar-1' to 'ActiveMQQueue[DLQ]' 17:04:44,671 INFO [ArtemisHornetQClientTest] [ 325]: * * * Received a message 'foobar-2' to 'ActiveMQQueue[DLQ]' 17:04:44,671 INFO [ArtemisHornetQClientTest] [ 325]: * * * Received a message 'foobar-3' to 'ActiveMQQueue[DLQ]' 17:04:44,672 INFO [ArtemisHornetQClientTest] [ 326]: * * * Received a message 'foobar-4' to 'ActiveMQQueue[DLQ]' {noformat} -- This message was sent by Atlassian JIRA (v6.4.11#64026)