OK, so I did a restart (after refreshing the sitemap, clients did not update any more - known bug AFAIK)
The rule got executed, but unfortunatly no joy:
Sep 14 20:39:53 JARVIS openhab.sh[10857]: 2016-09-14 20:39:53.873 [ERROR] [o.o.c.s.ScriptExecutionThread ] - Error during the execution of rule 'Biss zum naechsten mal': The name '<XFeatureCallImplCustom>.calendar' cannot be resolved to an item or type.
Any idea?
Edit: after following change:
(Naechster_Vollmond.state as DateTimeType).calendar.timeInMillis
even Designer doesn’t complain any more. Promising…
Too late for another openhab restart now (takes 20+ minutes and I’ve no clue why: Startup and performance issues ) so I will call it a day and check tomorrow if the Item got populated. I’ll report back…