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https://issues.apache.org/jira/browse/KARAF-4893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15751433#comment-15751433
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Roman Sakno commented on KARAF-4893:
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The same problem occurred on Ubuntu 16.04 LTS with OpenJDK 8
> Installing features from kar on windows fails
> ---------------------------------------------
>
> Key: KARAF-4893
> URL: https://issues.apache.org/jira/browse/KARAF-4893
> Project: Karaf
> Issue Type: Bug
> Components: karaf-feature, karaf-kar
> Affects Versions: 4.0.5, 4.0.6, 4.0.7
> Environment: Windows 10 x64
> Reporter: Evgeniy Kirichenko
> Labels: features, windows
>
> We have quite a big project with custom karaf disctribution. Recently we have
> begun the migration from 3.x to 4.x karaf.
> Our core feature is placed into <installedFeatures> section.
> Additional features are placed into deploy folder with
> maven-dependency-plugin (copy-to-deploy) as KAR files.
> There are 3 karaf archives in the deploy folder after our assembly is done.
> After startup the karaf (with karaf.bat file), 1 kar is usually being
> deployed well, 2 rest fails.
> In karaf.log we can see following exceptions:
> 2016-12-15 14:36:55,759 | INFO | \assembly/deploy | FeaturesServiceImpl
> | 8 - org.apache.karaf.features.core - 4.0.7 | Adding features:
> snamp-http-acceptor/[2.0.0,2.0.0]
> 2016-12-15 14:36:55,759 | WARN | \assembly/deploy | KarServiceImpl
> | 36 - org.apache.karaf.kar.core - 4.0.7 | Unable to install Kar
> feature snamp-http-acceptor/2.0.0
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@5fd6d173 rejected from
> java.util.concurrent.ThreadPoolExecutor@37659c9[Terminated, pool size = 0,
> active threads = 0, queued tasks = 0, completed tasks = 5]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047)[:1.8.0_111]
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:823)[:1.8.0_111]
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1369)[:1.8.0_111]
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)[:1.8.0_111]
> at
> java.util.concurrent.Executors$DelegatedExecutorService.submit(Executors.java:681)[:1.8.0_111]
> at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvisionInThread(FeaturesServiceImpl.java:1071)[8:org.apache.karaf.features.core:4.0.7]
> at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeatures(FeaturesServiceImpl.java:954)[8:org.apache.karaf.features.core:4.0.7]
> at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeatures(FeaturesServiceImpl.java:847)[8:org.apache.karaf.features.core:4.0.7]
> at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:832)[8:org.apache.karaf.features.core:4.0.7]
> at
> org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:842)[8:org.apache.karaf.features.core:4.0.7]
> at
> org.apache.karaf.kar.internal.KarServiceImpl.installFeatures(KarServiceImpl.java:283)[36:org.apache.karaf.kar.core:4.0.7]
> at
> org.apache.karaf.kar.internal.KarServiceImpl.install(KarServiceImpl.java:112)[36:org.apache.karaf.kar.core:4.0.7]
> at
> org.apache.karaf.kar.internal.KarServiceImpl.install(KarServiceImpl.java:94)[36:org.apache.karaf.kar.core:4.0.7]
> at
> org.apache.karaf.deployer.kar.KarArtifactInstaller.install(KarArtifactInstaller.java:50)[27:org.apache.karaf.deployer.kar:4.0.7]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:937)[4:org.apache.felix.fileinstall:3.5.4]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:871)[4:org.apache.felix.fileinstall:3.5.4]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:485)[4:org.apache.felix.fileinstall:3.5.4]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:361)[4:org.apache.felix.fileinstall:3.5.4]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:312)[4:org.apache.felix.fileinstall:3.5.4]
> After that we are able to install our features with console commands
> (feature:install) - it never causes such exceptions.
> Please note, that this defect can be reproduced not always, but almost always.
> Our proposition - something goes wrong in class FeaturesServiceImpl
> (https://github.com/apache/karaf/blob/karaf-4.0.7/features/core/src/main/java/org/apache/karaf/features/internal/service/FeaturesServiceImpl.java)
> - executor is closed for some reasons at the moment when next feature is
> being deployed. The main reason is permanent refreshing of bundle
> org.apache.karaf.features.core during installation of our features. But out
> features have no explicit dependency on this bundle. Method
> FeaturesServiceImpl.doProvisionInThread relies on private field 'executor'.
> The executor can be terminated using method FeaturesServiceImpl.stop().
> Theoretically, refreshing of bundle org.apache.karaf.features.core causes
> concurrency when service is stopping and new provisioning task arriving at
> the same time.
> We also have set noAutoRefreshBundles=true in org.apache.karaf.kar.cfg, but
> without success.
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