Pierre De Rop created FELIX-5998:
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Summary: NPE in Resolver checkPackageSpaceConsistency
Key: FELIX-5998
URL: https://issues.apache.org/jira/browse/FELIX-5998
Project: Felix
Issue Type: Task
Components: Resolver
Affects Versions: resolver-2.0.0
Reporter: Pierre De Rop
I'm using a custom ResolveContext implementation that I've written in order to
calculate the dependencies of some applications which bundles are all
centralized in an OBR. Now, using the Felix framework 6.0.1 (and the Resolver
2.0.0 that is provided by the framework), I sometimes get an NPE in the
ResolverImpl.checkPackageSpaceConsistency, line 1319).
My OBR is not yet fully "curated" (I still have some " Candidate permutation
failed due to a conflict between imports" logs when enabling
felix.log.level=4). So I'm cleaning the OBR gradually, but now, sometimes I
see this NPE while resolving :
{code:java}
java.lang.NullPointerException
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1319)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1500)
at
org.apache.felix.resolver.ResolverImpl.checkConsistency(ResolverImpl.java:622)
at
org.apache.felix.resolver.ResolverImpl.findValidCandidates(ResolverImpl.java:575)
at org.apache.felix.resolver.ResolverImpl.doResolve(ResolverImpl.java:438)
at org.apache.felix.resolver.ResolverImpl.resolve(ResolverImpl.java:421)
at org.apache.felix.resolver.ResolverImpl.resolve(ResolverImpl.java:414)
at
com.nokia.as.microfeatures.bundlerepository.impl.BundleRepositoryImpl.findResolution(BundleRepositoryImpl.java:257)
{code}
The bad thing is that I'm not able to reproduce the NPE when I enable
felix.log.level=4, and the NPE is difficult to reproduce.
Could someone please give me a clue about what could produce this NPE ? Are
there some traces which could be added in order to figure out what is the
problem ? Then is there a fix which should be done in order to avoid this null
pointer ?
If I fully cleanup my OBR, maybe I won't have anymore the NPE, but I just
wanted to report it here.
thank you.
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