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https://issues.apache.org/jira/browse/KARAF-7998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18012134#comment-18012134
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Maurice Betzel commented on KARAF-7998:
---------------------------------------
Setting JAVA_HOME to 21 works:
!Screenshot 2025-08-05 155156.png!
> Karaf specs activator is missing when used with wrapper
> -------------------------------------------------------
>
> Key: KARAF-7998
> URL: https://issues.apache.org/jira/browse/KARAF-7998
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.4.7
> Reporter: Maurice Betzel
> Priority: Minor
> Attachments: Screenshot 2025-08-05 155156.png
>
>
> Starting Karaf using the service wrapper (on Windows 11) shows missing Karaf
> Spec Activator.
> Copying org.apache.karaf.specs.locator-4.4.7.jar into boot solves the issue.
> I guess karaf-wrapper.conf must be modified to include the endorsed directory
> in boot classpath. See also https://issues.apache.org/jira/browse/KARAF-5840.
> {code:java}
> aug 04, 2025 11:34:34 AM org.apache.karaf.main.lock.SimpleFileLock lock
> INFO: Trying to lock C:\Java\platform\apache-karaf-4.4.7\lock
> aug 04, 2025 11:34:34 AM org.apache.karaf.main.lock.SimpleFileLock lock
> INFO: Lock acquired
> aug 04, 2025 11:34:34 AM org.apache.karaf.main.Main$KarafLockCallback
> lockAcquired
> INFO: Lock acquired. Setting startlevel to 100
> 2025-08-04T11:34:34,983 | INFO | CM Configuration Updater (ManagedService
> Update: pid=[org.ops4j.pax.logging]) | EventAdminConfigurationNotifier | 5 -
> org.ops4j.pax.logging.pax-logging-log4j2 - 2.2.8 | Sending Event Admin
> notification (configuration successful) to org/ops4j/pax/logging/Configuration
> 2025-08-04T11:34:34,992 | ERROR | FelixStartLevel | Felix
> | 4 - org.ops4j.pax.logging.pax-logging-api - 2.2.8 | Bundle
> org.apache.felix.framework [0] EventDispatcher: Error during dispatch.
> (java.lang.NoClassDefFoundError: org/apache/karaf/specs/locator/OsgiLocator)
> java.lang.NoClassDefFoundError: org/apache/karaf/specs/locator/OsgiLocator
> at
> org.apache.karaf.specs.activator.Activator.register(Activator.java:125)
> ~[org.apache.karaf.specs.activator-4.4.7.jar:4.4.7]
> at
> org.apache.karaf.specs.activator.Activator.bundleChanged(Activator.java:97)
> ~[org.apache.karaf.specs.activator-4.4.7.jar:4.4.7]
> at
> org.apache.felix.framework.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:915)
> ~[org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.EventDispatcher.fireEventImmediately(EventDispatcher.java:834)
> [org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.EventDispatcher.fireBundleEvent(EventDispatcher.java:516)
> [org.apache.felix.framework-7.0.5.jar:?]
> at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4847)
> [org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.StatefulResolver.fireResolvedEvents(StatefulResolver.java:1310)
> [org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.StatefulResolver.resolve(StatefulResolver.java:522)
> [org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:4393)
> [org.apache.felix.framework-7.0.5.jar:?]
> at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
> [org.apache.felix.framework-7.0.5.jar:?]
> at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1566)
> [org.apache.felix.framework-7.0.5.jar:?]
> at
> org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:297)
> [org.apache.felix.framework-7.0.5.jar:?]
> at java.lang.Thread.run(Thread.java:750) [?:1.8.0_452] {code}
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