This repo holds a testcase environment for durable topics resending messages with activemq 5.16.x

Once the server is started mvn clean package tomee:run there is message creator URI http://localhost:8080/amqtest/fw/topic/test?msg=helloworld which will create a durable message in the topic test which contains helloworld The reader uri http://localhost:8080/amqtest/ReadTopic?id=test&subid=blah1234 creates a durable subscription with id blah1234 and waits for 5 seconds for the next message and returns with OK when there is no new message. Once a message is received it will return immediatly with the message contents helloworld in this case. Repeated messages can be put on the topic, once the durable subscriber is created it will retrieve those messages 1 by 1. This is what is observed with Tomee 8.0.4 Plus, which contains ActiveMQ 5.15.12

When a newer version of Tomee with ActiveMQ 5.16.x is used the behaviour changes, this can be observed by starting the server with mvn clean package tomee:run -Dtomee.version=8.0.5 Now when a message is publised on the durable topic, the reader URI will get the message ( maximumRedeliveries + 1 ) times, the default setting is 6 +1 is 7 times This can be observed by repeatedly getting the reader URI http://localhost:8080/amqtest/ReadTopic?id=test&subid=blah1234 and seeing the same messages, only after the 7th time it will wait and return OK

Expected behaviour server

mvn clean package tomee:run

Problematic behaviour server

mvn clean package tomee:run -Dtomee.version=8.0.5

putting a message on the topic

curl http://localhost:8080/amqtest/fw/topic/test?msg=helloworld

Fetching the message

curl "http://localhost:8080/amqtest/ReadTopic?id=test&subid=blah1234"