I tried and it is getting worse and worse: Java on non-openHABian - #24 by kovacsi2899 I use the latest snapshot. It starts under Java 11 but it frozen due to njserial issue and Zwave binding does not work without solving it. New Rule engine needs to refresh Jython standalone to 272 but original 272 does not work we need a customized one by 5iver where jar file is not avaiable. I received his version but I can’t make java from that. I would not recommend to anybody to try it.