Christoph Läubrich created FELIX-4209:
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Summary: SCR seems to loads ConfigAdmin class through DS bundle
Key: FELIX-4209
URL: https://issues.apache.org/jira/browse/FELIX-4209
Project: Felix
Issue Type: Bug
Components: Declarative Services (SCR)
Affects Versions: scr-1.6.0
Reporter: Christoph Läubrich
I have the following scenario:
- Equinox Service bundle providing org.osgi.service.cm version="1.3.0"
- DS Component using org.osgi.service.cm in version="1.3.0"
- Felix ConfiguarationAdmin providing version="1.5.0"
- Felix SCR
The component fails to initilize because of a ClassCastException that the
Apache Felix CM impl can't be cast to org.osgi.service.cm.ConfigurationAdmin
{code}MESSAGE [-component name-] Cannot register Component
!STACK 0
java.lang.ClassCastException: org.apache.felix.cm.impl.ConfigurationAdminImpl
cannot be cast to org.osgi.service.cm.ConfigurationAdmin
at
org.apache.felix.scr.impl.config.ConfigurationComponentRegistry.createComponentHolder(ConfigurationComponentRegistry.java:125)
at
org.apache.felix.scr.impl.BundleComponentActivator.loadDescriptor(BundleComponentActivator.java:244)
at
org.apache.felix.scr.impl.BundleComponentActivator.initialize(BundleComponentActivator.java:147)
at
org.apache.felix.scr.impl.BundleComponentActivator.<init>(BundleComponentActivator.java:111)
at
org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:285)
at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:203)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:847)
at
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at
org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at
org.eclipse.osgi.framework.internal.core.Framework.publishBundleEventPrivileged(Framework.java:1523)
at
org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1459)
at
org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1454)
at
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:391)
at
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:299)
at
org.eclipse.osgi.framework.internal.core.PackageAdminImpl.resumeBundles(PackageAdminImpl.java:313)
at
org.eclipse.osgi.framework.internal.core.PackageAdminImpl.processDelta(PackageAdminImpl.java:557)
at
org.eclipse.osgi.framework.internal.core.PackageAdminImpl.doResolveBundles(PackageAdminImpl.java:253)
at
org.eclipse.osgi.framework.internal.core.PackageAdminImpl$1.run(PackageAdminImpl.java:173)
at java.lang.Thread.run(Unknown Source) {code}
It seems as if the SCR Bundle is fetching either the service or the Class
through the DS bundle and thus is getting a wrong reference.
Changing the DS providing bundle to use cm in version 1.5 fixes the issue, but
of course makes it impossible for it to use an older package version.
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