ActiveMQ leaks connections if a JMS message is sent from an MDB --------------------------------------------------------------- Key: WFLY-8217 URL: https://issues.jboss.org/browse/WFLY-8217 Project: WildFly Issue Type: Bug Components: JMS, Transactions Affects Versions: 10.1.0.Final Environment: Running on Windows 10. Java(TM) SE Runtime Environment (build 1.8.0_92-b14) Reporter: Scott Van Wart Assignee: Jeff Mesnil Priority: Minor Attachments: leak.zip, leak.zip, log.txt, log.txt, server.log If an MDB causes a JMS message to be sent during the call to onMessage(), ActiveMQ won't close its connection. I'm using JMS2 through an @Inject'ed JMSContext. My sample project is an EAR with an EJB JAR (containing a service and an MDB) and a JAX-RS endpoint (entry point for the test). 1) Build the EAR 2) Run wildfly with the standalone-full.xml configuration: {{standalone.bat --server-config=standalone-full.xml}} 3) Enable debug and error reporting for leaked connections with ActiveMQ/CCM: {{jboss-cli.bat -c}} {{/subsystem=jca/cached-connection-manager=cached-connection-manager:write-attribute(name=debug,value=true)}} {{/subsystem=jca/cached-connection-manager=cached-connection-manager:write-attribute(name=error,value=true)}} 4) Deploy the EAR. 5) Access http://localhost:8080/leak-web/rest/test?message=Hi The REST endpoint will send a message to the test topic (Defined in leak-ejb/src/main/java/test/mdb/TestTopic.java). TestTopicListener (in the same package as TestTopic) will receive the message and send a second message to the topic. Upon returning from TestTopicListener.onMessage(), the message is sent, but this shows up in the logs (see attached log.txt) I have no idea why JIRA attached each file twice.