Major Description
When starting our custom Karaf distribution, we're always seeing this stacktrace in the logs. Everything seems to be working, I'm not sure how to explain that, but still seems a little bug to me.
2021-04-30 12:13:56,385 - [o.a.k.f.i.s.FeaturesServiceImpl][features-3-thread-1] INFO - org.apache.sshd.sftp/2.5.1 2021-04-30 12:13:56,385 - [o.a.k.f.i.s.FeaturesServiceImpl][features-3-thread-1] INFO - org.apache.sshd.sftp/2.5.1 2021-04-30 12:13:56,387 - [o.a.k.f.i.s.FeaturesServiceImpl][features-3-thread-1] INFO - org.apache.karaf.shell.ssh/4.2.11 2021-04-30 12:13:56,399 - [o.a.k.s.s.Activator ][activator-1-thread-1] WARN - Error starting activator java.lang.IllegalStateException: Service not tracked for class interface org.osgi.service.cm.ConfigurationAdmin at org.apache.karaf.util.tracker.BaseActivator.getTrackedService(BaseActivator.java:369) at org.apache.karaf.util.tracker.BaseActivator.ensureStartupConfiguration(BaseActivator.java:154) at org.apache.karaf.shell.ssh.Activator.doStart(Activator.java:96) at org.apache.karaf.util.tracker.BaseActivator.run(BaseActivator.java:312) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)2021-04-30 12:13:56,426 - [o.a.k.s.i.a.o.CommandExtension][features-3-thread-1] INFO - Command registration delayed for bundle org.apache.karaf.shell.ssh/4.2.11. Missing service: [org.apache.sshd.server.SshServer]
I had a look at the org.apache.karaf.shell.ssh.Activator and I feel like it's missing a
@RequireService(ConfigurationAdmin.class) because that service is required by the method
ensureStartupConfiguration() and the only other Activator using that method does have the @RequireService(ConfigurationAdmin.class) .
Also, it might be better to add a null-check for this service in the doStart()-method
ConfigurationAdmin configurationAdmin = getTrackedService(ConfigurationAdmin.class); if (configurationAdmin == null ) { return; }