This topic can be used to discuss problems/experiences/questions on the openHAB 5.1 release as announced in this topic.
Thanks to all for that great work and this christmas gift 
Will test upgrade and feedback whenever necessary after the christmas days.
Merry Christmas to everybody 
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11 posts were split to a new topic: Chart tooltip displays last datapoint if no current data
Many thanks for 5.1.0. MainUI seems to be faster than in previous versions.
I have noticed one problem in my DSL rules. For example the line below
val KV_pumppu_luxus_ajastus_ON_aikaZDT1 = (KV_pumppu_luxus_ON_aika.state as DateTimeType).getZonedDateTime
gives an error message in the log:
2025-12-23 08:53:08.526 [ERROR] [.handler.AbstractScriptModuleHandler] - Script execution of rule with UID 'af6fedafb3' failed: Could not cast NULL to org.openhab.core.library.types.DateTimeType; line 6, column 44, length 45
So Iām wondering if getZonedDateTime is depreciated.
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Your code fails because your item state is NULL and not a date & time.
Add a null check for example.
OK, thanks for the info. My scripts are now working. Iām not quite sure why the item state was NULL.
which java version is recommended?
At least Java 21 is required and Java 25 doesnāt work yet, so Java 21.
If this question rather means the vendor, Eclipse Adoptium Temurin is recommended or the OpenJDK build from your OS vendor.
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Just upgraded to 5.1.0 and have the issue of the android app only showing a blank screen.
Chrome also shows a blank screen when using the mobile view, the desktop view works.
Just migrated and it went smoothly.
Only comment is that I did not have to install home assistant binding, it seems that it was installed automatically (by the upgrade tool?).
Main UI is very snappy as first impression. I will now scan the other improvements.
Thank you very much to all who contributed to this release.
It seems that the EntsoE binding in OH5.1 supports now also 60min resolution PT60M. This is really great!
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Can you point me to the documentation please
I searched for websocket but wasnāt able to find sth. @florian-h05
Only can find this
Or this
@florian-h05 the Main UI seems to display a blank screen for both mobile and desktop views when the following options are used:
I have the Simple Navbar enabled for mobile view which explains why I get a blank screen for the Android app and when not using desktop view in Chrome.
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The tooltop displays the date of the data, so you can see itās obviously not from now. And the chart even displays the point the tooltip refers.
Again: There is NO documentation yet. All you have is the core and the web UI PR, checking the code you can try to understand how to use it.
Thatās something to work with, thanks for the information!
Hi,
I have such errors inlog after upgarde. Was upgrading from 5.1 M2.
Suppressed: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.apache.karaf.wrapper:org.apache.karaf.wrapper.core:jar:4.4.8 in openhab (https://openhab.jfrog.io/openhab/libs-release/)
at shaded.org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:48) ~[?:?]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:401) ~[?:?]
at shaded.org.eclipse.aether.util.concurrency.RunnableErrorForwarder.lambda$wrap$0(RunnableErrorForwarder.java:73) ~[?:?]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:669) ~[?:?]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:290) ~[?:?]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520) ~[?:?]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:408) ~[?:?]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:235) ~[?:?]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:212) ~[?:?]
at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:272) ~[?:?]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:767) ~[?:?]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:657) ~[?:?]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:598) ~[?:?]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:565) ~[?:?]
at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:52) ~[?:?]
at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:60) ~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
at java.lang.Thread.run(Thread.java:1583) [?:?]
Caused by: shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Error resolving artifact org.apache.karaf.wrapper:org.apache.karaf.wrapper.core:jar:4.4.8
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Me as wellā¦
On Docker, quite sure it is no access problem, tried all networking modes to be on the safe side: āhostā, ābridgeā, ā¦ I also tried stopping it on Docker, delete cache and tmp directory content. Also tried the alpine release and the larger oneā¦ Migrating from the last standard release, 5.0.1 I think.
Openhab then somehow starts, but no connection to database at all - everything is āNULLāā¦ Also many 1000nds of log-entries in a few minutes. If you want I can share much, much moreā¦
My dump started a little earlier, here it is:
Launching the openHAB runtime...
org.apache.karaf.features.internal.util.MultiException: Error:
Error downloading mvn:org.jxmpp/jxmpp-util-cache/1.1.0
Error downloading mvn:org.igniterealtime.smack/smack-xmlparser/4.5.0-beta6
Error downloading mvn:org.jxmpp/jxmpp-jid/1.1.0
Error downloading mvn:org.minidns/minidns-core/1.1.1
Error downloading mvn:org.igniterealtime.smack/smack-java11/4.5.0-beta6
Error downloading mvn:org.igniterealtime.smack/smack-extensions/4.5.0-beta6
Error downloading mvn:org.jxmpp/jxmpp-core/1.1.0
Error downloading mvn:org.igniterealtime.smack/smack-tcp/4.5.0-beta6
Error downloading mvn:org.igniterealtime.smack/smack-resolver-javax/4.5.0-beta6
Error downloading mvn:org.igniterealtime.smack/smack-sasl-javax/4.5.0-beta6
Error downloading mvn:org.igniterealtime.smack/smack-streammanagement/4.5.0-beta6
Error downloading mvn:org.igniterealtime.smack/smack-im/4.5.0-beta6
at org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:91)
at org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)
at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:474)
at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:469)
at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:223)
at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:399)
at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1069)
at org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$13(FeaturesServiceImpl.java:1004)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)
Suppressed: java.io.IOException: Error downloading mvn:org.jxmpp/jxmpp-util-cache/1.1.0
at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:77)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
... 3 more
Caused by: java.io.IOException: Error resolving artifact org.jxmpp:jxmpp-util-cache:jar:1.1.0: [Could not find artifact org.jxmpp:jxmpp-util-cache:jar:1.1.0 in openhab (https://openhab.jfrog.io/openhab/libs-release/), Could not find artifact org.jxmpp:jxmpp-util-cache:jar:1.1.0 in openhab (https://openhab.jfrog.io/openhab/libs-release/)]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.configureIOException(AetherBasedResolver.java:803)
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:774)
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:657)
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:598)
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:565)
at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:52)
at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:60)
... 6 more
Suppressed: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.jxmpp:jxmpp-util-cache:jar:1.1.0 in openhab (https://openhab.jfrog.io/openhab/libs-release/)
On question on rulesā conditions:
I used to have that
working fine in OH 5.0.2 as a condition for a rule to trigger. Now I get this error:
2025-12-23 12:55:37.823 [ERROR] [ernal.handler.ScriptConditionHandler] - Script of rule with UID 'NotifyPrisesInstantPowerAnormal' did not return a boolean value, but '[object Object]'
I tried adding a return statement but got an errorā¦
I have this as JS scripting configurationā¦
Any recommendation on the way to proceed?
Thank you.
Hi All
Thanks for all the hard work that has gone into this release.
Prior to loading on my live system I have done a quick test on my test machine.
I noticed 2 things
The Upgrade Tool reported taht it had corrected the inlflux.persist config (removed the DEFAULT). Thsi however ended up not being the case - I think this may be rekated to me uisng a Windows setup?
Manually removing the line resolved any warning etc, so have gone with that route.
The second issue is that one of my widgets is no longer displayng correctly:
Was - Prior to 5.1.0 Relase:
Now - with 5.1.0 Release
The relevant code is:
- component: f7-block
config:
style:
background-color: rgba(232,232,232)
border: 1px solid black
border-radius: 10px
height: 50px
left: 10%
marhin: 0
padding: 0
top: -20px
width: 80%
slots:
default:
- component: oh-icon
config:
height: 30px
icon: '=(items.SunSynk_Battery_Status.state === "Trickling") ? "charge_battery"
: (items.SunSynk_Battery_Status.state === "Charging") ?
"charge_battery" :(items.SunSynk_Battery_Status.state ===
"Idling") ? "full_battery" :
(items.SunSynk_Battery_Status.state === "Discharging") ?
"middle_battery" : (items.SunSynk_Battery_Status.state ===
"Critical") ? "empty_battery" : "error"'
style:
position: absolute
- component: Label
config:
style:
font-size: 15px
font-weight: 500
left: 50px
position: absolute
top: 5px
white-space: nowrap
text: =(items.SunSynk_Battery_Status.state)
- component: Label
config:
style:
font-size: 15px
font-weight: 500
left: 150px
position: absolute
top: 5px
white-space: nowrap
text: =(items.SunSynk_Battery_Current.state)
- component: Label
config:
style:
font-size: 15px
font-weight: 500
position: absolute
right: 10px
top: 5px
white-space: nowrap
text: =(items.SunSynk_Battery_SOC.state)
- component: Label
config:
style:
font-size: 15px
font-weight: 500
left: 15px
position: absolute
top: 5px
white-space: pre
text: '="PVE: " + (items.SunSynk_pvetoday.state)'
- component: Label
config:
style:
font-size: 15px
font-weight: 500
position: absolute
right: 20px
top: 5px
white-space: pre
text: '="GRID: " + (items.SunSynk_grid_Buy_Today.state)'
I have not looked at fixing yet as I assume this is related to the changes made for this release?
Thanks for any assistance.
Mark
Please share the code that Blockly generates.
Upgraded early today. Am a Windows11 user. The loading speed of OH 5.1.0 as well as the operating speed within the Main UI are very impressive vs OH 5.0.3 
.
Thanks for everything and a merry Chrismas !
1 Like