[
https://issues.apache.org/jira/browse/KARAF-4670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Baptiste Onofré reassigned KARAF-4670:
-------------------------------------------
Assignee: Jean-Baptiste Onofré
> Race condition in the Activator.updated() of the
> org.apache.karaf.cellar.hazelcast
> ----------------------------------------------------------------------------------
>
> Key: KARAF-4670
> URL: https://issues.apache.org/jira/browse/KARAF-4670
> Project: Karaf
> Issue Type: Bug
> Components: cellar-hazelcast
> Affects Versions: cellar-4.0.1
> Reporter: Sergiy Shyrkov
> Assignee: Jean-Baptiste Onofré
> Priority: Minor
> Fix For: cellar-4.0.2
>
>
> Sometimes on the startup I get an NPE in the
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator.updated() because
> the doStart() method execution has not been finished yet and the
> hazelcastServiceFactory is still null.
> My log is as follows, where the log message about the initialization of the
> hazelcastServiceFactory ("init Hazelcast service factory") comes after the
> call to Activator.updated() (causes an NPE).
> Thank you!
> {code}
> 2016-08-26 14:35:01,780: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.bundle: BundleEvent STARTING -
> org.apache.karaf.cellar.bundle
> 2016-08-26 14:35:01,793: INFO [FelixStartLevel]
> org.apache.karaf.shell.impl.action.osgi.CommandExtension: Command
> registration delayed for bundle org.apache.karaf.cellar.bundle/4.0.1. Missing
> dependencies: [org.apache.karaf.cellar.core.ClusterManager,
> org.apache.karaf.cellar.core.GroupManager,
> org.apache.karaf.cellar.core.event.EventProducer]
> 2016-08-26 14:35:01,794: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.bundle: BundleEvent STARTED -
> org.apache.karaf.cellar.bundle
> 2016-08-26 14:35:01,795: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.config: BundleEvent STARTING -
> org.apache.karaf.cellar.config
> 2016-08-26 14:35:01,801: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.config: ServiceEvent REGISTERED -
> [org.osgi.service.cm.ManagedService] - org.apache.karaf.cellar.config
> 2016-08-26 14:35:01,810: INFO [FelixStartLevel]
> org.apache.karaf.shell.impl.action.osgi.CommandExtension: Command
> registration delayed for bundle org.apache.karaf.cellar.config/4.0.1. Missing
> dependencies: [org.apache.karaf.cellar.core.ClusterManager,
> org.apache.karaf.cellar.core.GroupManager,
> org.apache.karaf.cellar.core.event.EventProducer]
> 2016-08-26 14:35:01,810: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.config: BundleEvent STARTED -
> org.apache.karaf.cellar.config
> 2016-08-26 14:35:01,811: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.features: BundleEvent STARTING -
> org.apache.karaf.cellar.features
> 2016-08-26 14:35:01,831: INFO [FelixStartLevel]
> org.apache.karaf.shell.impl.action.osgi.CommandExtension: Command
> registration delayed for bundle org.apache.karaf.cellar.features/4.0.1.
> Missing dependencies: [org.apache.karaf.cellar.core.ClusterManager,
> org.apache.karaf.cellar.core.GroupManager,
> org.apache.karaf.cellar.core.event.EventProducer]
> 2016-08-26 14:35:01,831: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.features: BundleEvent STARTED -
> org.apache.karaf.cellar.features
> 2016-08-26 14:35:01,832: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.hazelcast: BundleEvent STARTING -
> org.apache.karaf.cellar.hazelcast
> 2016-08-26 14:35:01,839: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.hazelcast: ServiceEvent REGISTERED -
> [org.osgi.service.cm.ManagedService] - org.apache.karaf.cellar.hazelcast
> 2016-08-26 14:35:01,841: INFO [FelixStartLevel]
> org.apache.karaf.shell.impl.action.osgi.CommandExtension: Registering
> commands for bundle org.apache.karaf.cellar.hazelcast/4.0.1
> 2016-08-26 14:35:01,841: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR HAZELCAST:
> init combined class loader
> 2016-08-26 14:35:01,844: ERROR [CM Configuration Updater (ManagedService
> Update: pid=[org.apache.karaf.cellar.discovery])]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: Can't update
> Hazelcast service factory
> java.lang.NullPointerException
> at
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator.updated(Activator.java:392)
> at
> org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189)
> at
> org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152)
> at
> org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85)
> at
> org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.provide(ConfigurationManager.java:1444)
> at
> org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.run(ConfigurationManager.java:1400)
> at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:143)
> at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:110)
> at java.lang.Thread.run(Thread.java:745)
> 2016-08-26 14:35:01,851: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.hazelcast: BundleEvent STARTED -
> org.apache.karaf.cellar.hazelcast
> 2016-08-26 14:35:01,854: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR HAZELCAST:
> start the discovery service tracker
> 2016-08-26 14:35:01,855: DEBUG [FelixStartLevel]
> org.apache.karaf.cellar.shell: BundleEvent STARTING -
> org.apache.karaf.cellar.shell
> 2016-08-26 14:35:01,855: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR HAZELCAST:
> start the synchronizer service tracker
> 2016-08-26 14:35:01,857: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR
> HAZELCAST:init dispatcher
> 2016-08-26 14:35:01,858: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR HAZELCAST:
> create Hazelcast configuration manager
> 2016-08-26 14:35:01,859: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR
> HAZELCAST:init Hazelcast service factory
> 2016-08-26 14:35:01,862: DEBUG [pool-153-thread-1]
> org.apache.karaf.cellar.hazelcast.internal.osgi.Activator: CELLAR
> HAZELCAST:register Hazelcast instance
> {code}
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