Robert Varga created KARAF-8001:
-----------------------------------
Summary: log:tail in static distribution reports an
UnsupportedOperationException
Key: KARAF-8001
URL: https://issues.apache.org/jira/browse/KARAF-8001
Project: Karaf
Issue Type: Bug
Components: karaf
Reporter: Robert Varga
Using a static distribution like the one available here:
[https://repo1.maven.org/maven2/org/opendaylight/odlparent/test-static/14.1.1/test-static-14.1.1.tar.gz]
and issuing 'log:tail' results in failing to tail:
{noformat}
opendaylight-user@root>log:tail
16:41:12.762 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.log.core/4.4.8
16:41:12.799 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.shell.commands/4.4.8
16:41:12.800 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Updating commands for bundle
org.apache.karaf.shell.commands/4.4.8
16:41:12.805 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.event/4.4.8
16:41:12.808 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Binding HTTP Service for bundle:
[org.apache.karaf.http.core_4.4.8 [36]]
16:41:12.811 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.http.core/4.4.8
16:41:12.822 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.system.core/4.4.8
16:41:12.831 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] Registering commands for bundle
org.apache.karaf.features.command/4.4.8
16:41:12.837 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] bundle org.apache.felix.scr:2.2.6 (52)
Starting with globalExtender setting: false
16:41:12.839 INFO [Refresh Thread: Equinox Container:
24f4ec3f-0828-4769-9775-a63b04469992] bundle org.apache.felix.scr:2.2.6 (52)
Version = 2.2.6
16:41:12.847 INFO [features-3-thread-1] Done.
Error executing command: java.lang.UnsupportedOperationException
opendaylight-user@root>{noformat}
The full splat is logged each time as:
{noformat}
2025-08-14T16:41:30,047 | ERROR | Karaf local console user karaf | ShellUtil
| 28 - org.apache.karaf.shell.core - 4.4.8 | Exception
caught while executing command
java.lang.UnsupportedOperationException: null
at
org.apache.karaf.services.staticcm.StaticConfigurationImpl.update(StaticConfigurationImpl.java:54)
~[?:?]
at
org.apache.karaf.log.core.internal.LogServiceImpl.setLevel(LogServiceImpl.java:117)
~[?:?]
at
org.apache.karaf.log.command.LogTail$LogServiceTracker.addingService(LogTail.java:95)
~[?:?]
at
org.apache.karaf.log.command.LogTail$LogServiceTracker.addingService(LogTail.java:76)
~[?:?]
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943)
~[osgi.core-8.0.0.jar:?]
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:871)
~[osgi.core-8.0.0.jar:?]
at
org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
~[osgi.core-8.0.0.jar:?]
at
org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
~[osgi.core-8.0.0.jar:?]
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:321)
~[osgi.core-8.0.0.jar:?]
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:264)
~[osgi.core-8.0.0.jar:?]
at org.apache.karaf.log.command.LogTail.execute(LogTail.java:54) ~[?:?]
at
org.apache.karaf.shell.impl.action.command.ActionCommand.execute(ActionCommand.java:88)
~[?:?]
at
org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:68)
~[?:?]
at
org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:86)
~[?:?]
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
~[?:?]
at
org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526) ~[?:?]
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
~[?:?]
at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416) ~[?:?]
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229) ~[?:?]
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?]
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) [?:?]
{noformat}
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