ponziani opened a new issue, #2637:
URL: https://github.com/apache/karaf/issues/2637
After upgrading to Karaf 4.4.11, I’m seeing the stacktrace below in the logs.
Additionally, I noticed that the bundle
org.apache.felix.webconsole.plugins.memoryusage-1.1.0 now imports the package
org.apache.felix.webconsole.servlet, but this package does not appear to be
exported by org.apache.karaf.webconsole.console-4.4.11.
This seems to leave the import unresolved after the upgrade.
Could you confirm whether this is an expected change in 4.4.11, or if an
export is missing from the Karaf webconsole console bundle?
Kind regards,
Steven
```
2026-05-05 10:31:54,303 - [E.Framework ][FelixDispatchQueue] ERROR -
FrameworkEvent ERROR
org.osgi.framework.ServiceException: Service factory exception:
org/apache/felix/webconsole/servlet/AbstractServlet
at
org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:354)
at
org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:249)
at
org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:362)
at org.apache.felix.framework.Felix.getService(Felix.java:3984)
at
org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:450)
at
org.apache.felix.inventory.impl.InventoryPrinterManagerImpl.addingService(InventoryPrinterManagerImpl.java:127)
at
org.apache.felix.inventory.impl.InventoryPrinterManagerImpl.addingService(InventoryPrinterManagerImpl.java:48)
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943)
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:871)
at
org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
at
org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:903)
at
org.apache.felix.framework.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:990)
at
org.apache.felix.framework.EventDispatcher.fireEventImmediately(EventDispatcher.java:838)
at
org.apache.felix.framework.EventDispatcher.fireServiceEvent(EventDispatcher.java:545)
at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4863)
at org.apache.felix.framework.Felix.registerService(Felix.java:3834)
at
org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:328)
at
org.apache.felix.webconsole.plugins.memoryusage.internal.Activator$AbstractServiceFactory.<init>(Activator.java:109)
at
org.apache.felix.webconsole.plugins.memoryusage.internal.Activator$2.<init>(Activator.java:61)
at
org.apache.felix.webconsole.plugins.memoryusage.internal.Activator.start(Activator.java:59)
at
org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:849)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2429)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2335)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:1006)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:992)
at
org.apache.karaf.features.internal.service.BundleInstallSupportImpl.startBundle(BundleInstallSupportImpl.java:165)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.startBundle(FeaturesServiceImpl.java:1160)
at
org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:1041)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1069)
at
org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$13(FeaturesServiceImpl.java:1004)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.NoClassDefFoundError:
org/apache/felix/webconsole/servlet/AbstractServlet
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.defineClass(BundleWiringImpl.java:2338)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.defineClassParallel(BundleWiringImpl.java:2156)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2090)
at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1556)
at
org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1976)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
at
org.apache.felix.webconsole.plugins.memoryusage.internal.Activator$2.createObject(Activator.java:65)
at
org.apache.felix.webconsole.plugins.memoryusage.internal.Activator$AbstractServiceFactory.getService(Activator.java:126)
at
org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:349)
... 34 more
Caused by: java.lang.ClassNotFoundException:
org.apache.felix.webconsole.servlet.AbstractServlet not found by
org.apache.felix.webconsole.plugins.memoryusage [316]
at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1591)
at
org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1976)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
... 46 more
```
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