[Windows] All OH logs stop when Jython is in the classpath

[ysc (Yannick Schaus)]

@gjj81

However, as soon as I place the jython-standalone .jar file in conf\automation\jython and restart Openhab all logging stops. For example when I log:tail in the console I get nothing.

If I delete the jython-standalone .jar file and restart Openhab again, log:tail produces all the usual output. It also shows all the ServiceEvents REGISTERED of all the .py files etc… But when I save a .py file it of course says ScriptEngine for py not available

@5iver

I finally booted into Windows and was amazed that I could reproduce this. However, by fiddling around and restarting OH a bunch of times, the logs worked again. I’ll look into it some more and open an issue if I can’t figure out the cause/fix.

For future reference, I just ran into this while trying it out (on Windows), and solved it by doing the following:

1. Don’t copy jython-standalone-2.7.0.jar to conf\automation\jython, copy it to runtime\lib\boot instead
2. Instead of adding:
   set EXTRA_JAVA_OPTS=-Xbootclasspath/a:C:\openhab2\conf\automation\jython\jython-standalone-2.7.0.jar -Dpython.home=C:\openhab2\conf\automation\jython -Dpython.path=C:\openhab2\conf\automation\lib\python
   to start.bat, simply add:
   set EXTRA_JAVA_OPTS=-Dpython.home=C:\openhab2\conf\automation\jython -Dpython.path=C:\openhab2\conf\automation\lib\python

Be advised this probably won’t survive an upgrade since the runtime directory gets pretty much overwritten (and you’re not really supposed to touch it much), but for quick testing it does the trick. Hope this helps.