I’m trying to use the MQTT 2.4 binding to interface my boiler to my OH system. I’ve read through the MQTT documentation and created an embedded broker, turned on debug logging and can see that the boiler interface has connected to it. However, whenever I try to create a generic MQTT thing I get a message about a java.lang.Exception.
I’m configuring the MQTT thing like this:
Clicking on save gives this result:
Am I doing something wrong? I’ve searched for similar problems and this looks like it might be a bug in MQTT 2.4. If I’ve hit the bug then how can I get this to work without upgrading my entire system to a 2.5 snapshot?