openHAB 4.3.2 showing SLF4J(W) errors in Console

AndrewFG · February 21, 2025, 7:13pm

My operative system is showing weird SLF4J(W) errors in the console. => Any ideas why?

SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
SLF4J(W): Class path contains SLF4J bindings targeting slf4j-api versions 1.7.x or earlier.
SLF4J(W): Ignoring binding found at [jar:file:/usr/share/openhab/runtime/system/org/apache/karaf/org.apache.karaf.client/4.4.6/org.apache.karaf.client-4.4.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J(W): See https://www.slf4j.org/codes.html#ignoredBindings for an explanation.```

wborn · February 21, 2025, 8:04pm

It’s a known Karaf issue:

github.com/openhab/openhab-core

SLF4J(W) console output when logging into Karaf console

opened 03:50PM - 27 Jun 24 UTC

closed 02:15PM - 26 Jan 25 UTC

florian-h05

external bug

When logging into the Karaf console, I now get this printed to the terminal: …``` SLF4J(W): No SLF4J providers were found. SLF4J(W): Defaulting to no-operation (NOP) logger implementation SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details. SLF4J(W): Class path contains SLF4J bindings targeting slf4j-api versions 1.7.x or earlier. SLF4J(W): Ignoring binding found at [jar:file:/usr/share/openhab/runtime/system/org/apache/karaf/org.apache.karaf.client/4.4.6/org.apache.karaf.client-4.4.6.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J(W): See https://www.slf4j.org/codes.html#ignoredBindings for an explanation. ``` I am not sure since when this happens, but I think it didn‘t before the Karaf 4.4.6 upgrade. @holgerfriedrich @wborn May I ask your your help?