Using injected JMS in a background task/thread leads to NameNotFoundException: java:comp/TransactionSynchronizationRegistry --------------------------------------------------------------------------------------------------------------------------- Key: WFLY-9529 URL: https://issues.jboss.org/browse/WFLY-9529 Project: WildFly Issue Type: Bug Components: JMS Affects Versions: 10.1.0.Final, 11.0.0.Final Environment: Running on Windows 10, Java 64-bit 1.8.0_131 Reporter: Scott Van Wart Assignee: Jeff Mesnil Labels: ActiveMQ, jms, transaction Attachments: injected-jms.zip, wildfly-11-injected-jms.txt If I try to use an @Injected JMSContext while executing within a background task (ManagedExecutorService) or thread (ManagedThreadFactory), I get the attached stacktrace. I've experienced this a number of times with Wildfly 10.1.0, including messages sent in Infinispan's expiry task thread. My original workaround was to submit an additional task on a separate thread to send the message, then wait for it to complete. That seemed unreliable (sometimes it would still produce NameNotFoundException). I've resorted to creating my own JMSContext by using @Resource( lookup="java:/ConnectionFactory" ) and sending messages that way. Both workarounds prevent the message sending logic from participating in any ongoing transactions. I'm also attaching a sample EAR project. It can be built with Maven. It creates a background task that waits 3 seconds and then tries to send a JMS message in a new transaction using an injected JMS context. I use the standalone-full.xml profile to run it.