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From "Christian Schneider (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KARAF-3520) FeatureService fails to install feature in case of missing capability
Date Fri, 17 Apr 2015 09:41:59 GMT

    [ https://issues.apache.org/jira/browse/KARAF-3520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14499546#comment-14499546
] 

Christian Schneider commented on KARAF-3520:
--------------------------------------------

I agree. The problem is mainly if users start using requirements but the bundles that could
provide the capabilities do not have them. I think Guillaume mentioned that we can describe
these missing capabilties in features. Have not tested it though. 

> FeatureService fails to install feature in case of missing capability
> ---------------------------------------------------------------------
>
>                 Key: KARAF-3520
>                 URL: https://issues.apache.org/jira/browse/KARAF-3520
>             Project: Karaf
>          Issue Type: Bug
>          Components: karaf-feature
>    Affects Versions: 4.0.0.M1
>            Reporter: Achim Nierbeck
>            Priority: Critical
>             Fix For: 4.0.0
>
>
> If a bundle does contain a require-capability header for example like the following:

> {code}
> osgi.service; effective:=active; filter:="(objectClass=org.ops4j.pax.url.mvn.MavenResolver)"]]
> {code}
> but there is no bundle satisfying this capability the installation of this feature fails:

> {code}
> org.osgi.service.resolver.ResolutionException: Unable to resolve root: missing requirement
[root] osgi.identity; osgi.identity=mybundle; type=karaf.feature; version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]";
filter:="(&(osgi.identity=mybundle)(type=karaf.feature)(version>=1.0.0.SNAPSHOT)(version<=1.0.0.SNAPSHOT))"
[caused by: Unable to resolve mybundle/1.0.0.SNAPSHOT: missing requirement [mybundle/1.0.0.SNAPSHOT]
osgi.identity; osgi.identity=com.my.package; type=osgi.bundle; version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]";
resolution:=mandatory [caused by: Unable to resolve com.my.package/1.0.0.SNAPSHOT: missing
requirement [com.my.package/1.0.0.SNAPSHOT] osgi.service; effective:=active; filter:="(objectClass=org.ops4j.pax.url.mvn.MavenResolver)"]]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:285)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.processCandidates(Candidates.java:454)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populateResource(Candidates.java:266)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.Candidates.populate(Candidates.java:153)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.felix.resolver.ResolverImpl.resolve(ResolverImpl.java:148)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:186)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:254)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1028)[6:org.apache.karaf.features.core:4.0.0.M2]
> at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:929)[6:org.apache.karaf.features.core:4.0.0.M2]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_25]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_25]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_25]
> at java.lang.Thread.run(Thread.java:745)[:1.8.0_25]
> {code}
> The installation of the bundle works from the shell via a bundle:install without issues,
the resolving of the bundle also works. 
> The feature service should handle missing capabilities more graceful. 



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