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https://issues.apache.org/jira/browse/KARAF-910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118616#comment-13118616
]
Chris Dolan commented on KARAF-910:
-----------------------------------
It looks like this race may be an inherent by-product of the ManagedService
contract (see Neil Bartlett's answer to
http://stackoverflow.com/questions/7616295/how-can-you-get-managedservice-configuration-immediately).
If so, then it may be necessary to alter org.ops4j.pax.url.mvn to handle this
scenario, or else retry the features.xml resolution. It's not clear if Karaf or
Pax is the best place to solve that.
> Race between FeatureService and ConfigAdmin for resolving mvn: URLs?
> --------------------------------------------------------------------
>
> Key: KARAF-910
> URL: https://issues.apache.org/jira/browse/KARAF-910
> Project: Karaf
> Issue Type: Bug
> Components: karaf-features
> Affects Versions: 2.2.2
> Environment: Talend Service Factory 2.4.2.0 (includes Karaf 2.2.2)
> with the Equinox core.
> Reporter: Chris Dolan
>
> I have an intermittent problem where my custom features.xml cannot be
> resolved. I use a tweaked etc/org.ops4j.pax.url.mvn.cfg file so the
> features.xml file is never present in $HOME/.m2/repo but is instead is
> resolved to local repo relative to the app:
> org.ops4j.pax.url.mvn.defaultRepositories=file:${karaf.base}/system@snapshots,\
> file:${karaf.home}/${karaf.default.repository}@snapshots,\
> file:${karaf.base}/../../../.env/.m2/repo@snapshots
> Sometimes when I start Karaf, I get this error (actual URL edited for privacy)
> karaf@tsf> 2011-09-30 09:23:09,760 WARN [FeaturesServiceImpl.java:924]
> Unable to add features repository
> mvn:<my-group-id>/<my-artifact-id>/<my-version>/xml/features at startup -
> o.a.k.f.i.FeaturesServiceImpl
> java.lang.RuntimeException: URL
> [mvn:<my-group-id>/<my-artifact-id>/<my-version>/xml/features] could not be
> resolved.
> at
> org.ops4j.pax.url.mvn.internal.Connection.getInputStream(Connection.java:195)
> [na:na]
> at
> org.ops4j.pax.url.mvn.internal.AetherBridgeConnection.getInputStream(AetherBridgeConnection.java:68)
> [na:na]
> at
> org.apache.karaf.features.internal.FeatureValidationUtil.validate(FeatureValidationUtil.java:49)
> [na:na]
> at
> org.apache.karaf.features.internal.FeaturesServiceImpl.validateRepository(FeaturesServiceImpl.java:199)
> [na:na]
> at
> org.apache.karaf.features.internal.FeaturesServiceImpl.internalAddRepository(FeaturesServiceImpl.java:210)
> [na:na]
> at
> org.apache.karaf.features.internal.FeaturesServiceImpl.start(FeaturesServiceImpl.java:922)
> [na:na]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [na:1.6.0_26]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [na:1.6.0_26]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [na:1.6.0_26]
> at java.lang.reflect.Method.invoke(Method.java:597) [na:1.6.0_26]
> at
> org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:226)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:824)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:636)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:724)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:64)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:219)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:147)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:640)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:331)
> [org.apache.aries.blueprint:0.3.1]
> at
> org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:227)
> [org.apache.aries.blueprint:0.3.1]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> [na:1.6.0_26]
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> [na:1.6.0_26]
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> [na:1.6.0_26]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
> [na:1.6.0_26]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
> [na:1.6.0_26]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> [na:1.6.0_26]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> [na:1.6.0_26]
> at java.lang.Thread.run(Thread.java:662) [na:1.6.0_26]
> If I put a breakpoint in
> org.ops4j.pax.url.mvn.internal.Connection.getInputStream(), I can see that
> when it fails m_configuration.getDefaultRepositories() contains one repo
> ($HOME/.m2/repo) and when it succeeds
> m_configuration.getDefaultRepositories() contains the three repos I've
> specified in etc/org.ops4j.pax.url.mvn.cfg.
> I interpret that to mean that sometimes the features resolution happens
> before Felix reads the files in etc/ and sometimes the features load
> afterward. Mostly I'm using the same startlevels as Karaf -- my
> startup.properties file is identical to the following except for a few
> additions I made.
> http://svn.apache.org/viewvc/karaf/trunk/assemblies/apache-karaf/src/main/filtered-resources/etc/startup.properties?revision=1176017&view=markup
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