When used to connect with (legacy activemq server) activemq-client v6.1.1, sending a JMSMessage by default type is "" (empty). <img width="638" alt="image" src="https://github.com/smallrye/smallrye-reactive-messaging/assets/16721777/832dedb4-1ad2-42fd-ad3d-7d314878ced0">  After consuming a JMSMessage JMSType came empty and we try to load type "" from the classloader. Can we add extra isNotEmpty() validation? Thanks