Hi, I’m not sure if I have discovered a bug in Artemis (2.31.2) or if I have misunderstood something.
I used the following command to create a new instance: apache-artemis-2.31.2/bin/artemis create --user admin --password admin --no-autocreate --require-login myBroker I have added the following address: <address name="TEST.QUEUE.A"> <anycast> <queue name="TEST.QUEUE.A"> <filter string="NOT(MyHeader='lorem')" /> </queue> </anycast> </address> When sending a message with the “MyHeader” header set to “ipsum”, the message ends up on the queue (as expected). However, if the “MyHeader” header is missing, the message simply disappears. E.g. when using the following command: ./artemis producer --url tcp://localhost:61616 --user admin --password admin --message-count 1 --destination TEST.QUEUE.A --message "no header" (BTW, is it somehow possible to specify custom headers when using the producer command? I’ve not seen any information about support for that but it could be handy in some cases.) I expected messages without “MyHeader” header to end up on the queue (given the filter above). Instead, I have to use the following filter to make messages without the header to end up on the queue: <filter string="(MyHeader IS NULL) OR (NOT(MyHeader='lorem'))" /> Is this a bug or a feature? Regards, Calle