Hi,

It could be related to resolver update (Karaf 4.3.0 uses Resolver 2.0 now).

Can you please create a Jira, I will investigate ?

Thanks,
Regards
JB

> Le 11 mai 2020 à 09:48, braus <s.bra...@gaston-schul.com> a écrit :
> 
> So I noticed a difference in deploying the exact same kar in the new karaf
> 4.3.0.RC1 version and the older ones. When I try to install a kar with the
> feature (simplified) found below with the mariadb JDBC driver it throws a
> nullpointer exception with stacktrace found down below.
> 
> But what I find odd is that this kar installs without problems on earlier
> Karaf versions. What is furthermore odd is that only putting the mariadb
> bundle in deploy works perfectly fine in both versions.
> 
> Anyone any idea what is causing this odd behaviour and if it's a bug of the
> karaf 4.3.0.RC1 version?
> 
> Feature:
> 
>    <feature name="mariadb" version="${project.version}">
> 
> <bundle>mvn:org.mariadb.jdbc/mariadb-java-client/${mariadb.client.version}</bundle>
>    </feature>
> 
> Stacktrace:
> 
> java.lang.NullPointerException: null
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.getRegion(SubsystemResolveContext.java:270)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.access$000(SubsystemResolveContext.java:67)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext$Visitor.contains(SubsystemResolveContext.java:302)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext$Visitor.contains(SubsystemResolveContext.java:294)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.AbstractRegionDigraphVisitor.visit(AbstractRegionDigraphVisitor.java:56)
> ~[?:?]
>       at
> org.eclipse.equinox.internal.region.SubgraphTraverser.visitRemainingSubgraph(SubgraphTraverser.java:37)
> ~[?:?]
>       at
> org.eclipse.equinox.internal.region.SubgraphTraverser.visitSubgraph(SubgraphTraverser.java:32)
> ~[?:?]
>       at
> org.eclipse.equinox.internal.region.StandardRegionDigraph.visitSubgraph(StandardRegionDigraph.java:374)
> ~[?:?]
>       at
> org.eclipse.equinox.internal.region.BundleIdBasedRegion.visitSubgraph(BundleIdBasedRegion.java:264)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.findProviders(SubsystemResolveContext.java:208)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.computeEdges(SubsystemResolveContext.java:138)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.computeDistances(SubsystemResolveContext.java:118)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolveContext.<init>(SubsystemResolveContext.java:96)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:231)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:391)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1062)
> ~[?:?]
>       at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$13(FeaturesServiceImpl.java:998)
> ~[?:?]
>       at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
> ~[?:1.8.0_212]
>       at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> ~[?:1.8.0_212]
>       at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> ~[?:1.8.0_212]
>       at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_212]
> 
> 
> 
> 
> 
> 
> 
> --
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