Thomas Watson created ARIES-1637:
------------------------------------
Summary: 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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