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https://issues.apache.org/jira/browse/ARIES-1637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Watson resolved ARIES-1637.
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Resolution: Fixed
I released a fix for this.
> Subsystem persistent cache is not successfully deleted on uninstall
> -------------------------------------------------------------------
>
> Key: ARIES-1637
> URL: https://issues.apache.org/jira/browse/ARIES-1637
> Project: Aries
> Issue Type: Bug
> Components: Subsystem
> Reporter: Thomas Watson
> Assignee: Thomas Watson
>
> It is unclear the cause of this, but sometimes upon uninstalling a subsystem
> I find that the subsystems cache on disk still will contain the DEPLOYMENT.MF
> file for the subsystem. On restart if the same subsystem is installed again
> you will see the exception below. One cause may be because the DEPLOYMENT.MF
> holds the state of the subsystem, it may be possible that another thread is
> attempting to save the state in the DEPLOYMENT.MF file while the uninstall
> command is trying to delete the cache folder for the subsystem. On restart
> the DEPLOYMENT.MF file has the header indicating that it is uninstalled:
> AriesSubsystem-State: UNINSTALLED
> One possible fix is to detect the uninstalled state while reading the
> subsystems cache and discarding the ones that are uninstalled.
> org.osgi.service.subsystem.SubsystemException: java.lang.NullPointerException
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.getSubsystemManifest(BasicSubsystem.java:512)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.getSymbolicName(BasicSubsystem.java:336)
> at
> org.apache.aries.subsystem.core.internal.TargetRegion.contains(TargetRegion.java:36)
> at
> org.apache.aries.subsystem.core.internal.InstallAction.run(InstallAction.java:63)
> at
> org.apache.aries.subsystem.core.internal.InstallAction.run(InstallAction.java:27)
> at
> java.security.AccessController.doPrivileged(AccessController.java:594)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:738)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:732)
> at
> com.ibm.ws.app.manager.esa.internal.DeploySubsystemAction.installSubsystem(DeploySubsystemAction.java:190)
> at
> com.ibm.ws.app.manager.esa.internal.DeploySubsystemAction.deploySubsystem(DeploySubsystemAction.java:163)
> at
> com.ibm.ws.app.manager.esa.internal.DeploySubsystemAction.deploy(DeploySubsystemAction.java:113)
> at
> com.ibm.ws.app.manager.esa.internal.SubsystemHandler.install(SubsystemHandler.java:356)
> at
> com.ibm.ws.app.manager.esa.internal.EBAToSubsystemHandler.install(EBAToSubsystemHandler.java:189)
> at
> com.ibm.ws.app.manager.internal.statemachine.StartAction.execute(StartAction.java:141)
> at
> com.ibm.ws.app.manager.internal.statemachine.ApplicationStateMachineImpl.enterState(ApplicationStateMachineImpl.java:1191)
> at
> com.ibm.ws.app.manager.internal.statemachine.ApplicationStateMachineImpl.run(ApplicationStateMachineImpl.java:804)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1153)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.lang.Thread.run(Thread.java:785)
> Caused by: java.lang.NullPointerException
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.getSubsystemManifest(BasicSubsystem.java:509)
> ... 18 more
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