[KNX binding]

Add-ons Bindings
1

Hello!

If I try to save my .items file after adding a dimmer item the log tells me that the listener cannot be informed.
I tried deleting the line of code i inserted but the error does not disappear. a restart did not work as well.

i am running openhabian on a debian virtual machine (OH 3.1 stable).

Here is the log:

2021-12-06 09:46:47.993 [ERROR] [ore.common.registry.AbstractRegistry] - Cannot inform the listener "org.openhab.core.thing.internal.ChannelLinkNotifier@7efc9988" about the "UPDATED" event: null
java.lang.NullPointerException: null
	at java.util.Objects.requireNonNull(Unknown Source) ~[?:?]
	at org.openhab.binding.knx.internal.handler.DeviceThingHandler.getChannelTypeUID(DeviceThingHandler.java:275) ~[?:?]
	at org.openhab.binding.knx.internal.handler.DeviceThingHandler.isControl(DeviceThingHandler.java:269) ~[?:?]
	at org.openhab.binding.knx.internal.handler.DeviceThingHandler.channelLinked(DeviceThingHandler.java:162) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.lambda$3(ChannelLinkNotifier.java:72) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.call(ChannelLinkNotifier.java:96) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.added(ChannelLinkNotifier.java:72) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.updated(ChannelLinkNotifier.java:88) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.updated(ChannelLinkNotifier.java:1) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.notifyListeners(AbstractRegistry.java:387) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.notifyListenersAboutUpdatedElement(AbstractRegistry.java:408) ~[?:?]
	at org.openhab.core.thing.link.ItemChannelLinkRegistry.notifyListenersAboutUpdatedElement(ItemChannelLinkRegistry.java:150) ~[?:?]
	at org.openhab.core.thing.link.ItemChannelLinkRegistry.notifyListenersAboutUpdatedElement(ItemChannelLinkRegistry.java:1) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.updated(AbstractRegistry.java:314) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.updated(AbstractRegistry.java:1) ~[?:?]
	at org.openhab.core.common.registry.AbstractProvider.notifyListeners(AbstractProvider.java:66) ~[?:?]
	at org.openhab.core.common.registry.AbstractProvider.notifyListenersAboutUpdatedElement(AbstractProvider.java:91) ~[?:?]
	at org.openhab.core.model.thing.internal.GenericItemChannelLinkProvider.createItemChannelLink(GenericItemChannelLinkProvider.java:108) ~[?:?]
	at org.openhab.core.model.thing.internal.GenericItemChannelLinkProvider.processBindingConfiguration(GenericItemChannelLinkProvider.java:76) ~[?:?]
	at org.openhab.core.model.item.internal.GenericItemProvider.internalDispatchBindings(GenericItemProvider.java:372) ~[?:?]
	at org.openhab.core.model.item.internal.GenericItemProvider.internalDispatchBindings(GenericItemProvider.java:341) ~[?:?]
	at org.openhab.core.model.item.internal.GenericItemProvider.processBindingConfigsFromModel(GenericItemProvider.java:212) ~[?:?]
	at org.openhab.core.model.item.internal.GenericItemProvider.modelChanged(GenericItemProvider.java:407) ~[?:?]
	at org.openhab.core.model.core.internal.ModelRepositoryImpl.notifyListeners(ModelRepositoryImpl.java:301) ~[?:?]
	at org.openhab.core.model.core.internal.ModelRepositoryImpl.addOrRefreshModel(ModelRepositoryImpl.java:139) ~[?:?]
	at org.openhab.core.model.core.internal.folder.FolderObserver.checkFile(FolderObserver.java:249) ~[?:?]
	at org.openhab.core.model.core.internal.folder.FolderObserver.processWatchEvent(FolderObserver.java:312) ~[?:?]
	at org.openhab.core.service.WatchQueueReader.lambda$3(WatchQueueReader.java:322) ~[?:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:?]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]
	at java.lang.Thread.run(Unknown Source) [?:?]

Things snippet:

Thing device Schalter "KNX Schalter" [
        readInterval=3600
        ]{    
        Type dimmer         :   KG_Garage_Tor_Position_Status                       [ position="+<1/6/1"        ]
}

Items snippet:

Dimmer    KG_Garage_Tor_Position_Status                        "Garagentor Status"                {channel="knx:device:bridge:Schalter:KG_Garage_Tor_Position_Status"}

I hope you can help.

Thanks a lot!

2

Please delete the +

Thing device Schalter "KNX Schalter" [
    readInterval=3600
]{    
    Type dimmer : KG_Garage_Tor_Position_Status [ position="<1/6/1" ]
//                                                        ^^^
}

Please consider NOT to use readInterval at all, as it should not be necessary.

1 Like
3

Hello!

getting rid of the “+” as well as a restart did the trick. I also removed the readIntervals as you suggested.

Thanks a lot!