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https://issues.apache.org/jira/browse/ARIES-1416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14903853#comment-14903853
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John Ross commented on ARIES-1416:
----------------------------------
A second manifestation of this issue occurs when a resource will become part of
the shared content of an installing feature whose archive contains a child
subsystem with a Preferred-Provider header listing that resource. This issue
can be reproduced with the following scenario.
Bundle-SymbolicName: bundle.a.jar
Require-Capability: b
Bundle-SymbolicName: bundle.b.jar
Provide-Capability: b
Subsystem-SymbolicName: application.a.esa
Subsystem-Content: bundle.a.jar
Subsystem-Type: osgi.subsystem.application;provision-policy:=rejectDependencies
Preferred-Provider: bundle.b.jar
(include bundle.b.jar in the archive but not as content)
Subsystem-SymbolicName: feature.a.esa
Subsystem-Content: bundle.b.jar, application.a.esa
Subsystem-Type: osgi.subsystem.feature
Subsystem-SymbolicName: feature.b.esa
Subsystem-Content: bundle.b.jar, application.a.esa
Subsystem-Type: osgi.subsystem.feature
(1) Install feature A.
(2) Install feature B.
When feature B is installed, and thus application A, preferred provider bundle
B from the system repository is considered invalid because shared content
bundle B has not yet become a constituent of parent subsystem feature B.
Consequently, preferred provider bundle B from the local repository is selected
resulting in the exception as described in the previous comment.
SubsystemResourceInstallerInstallOrder.patch from ARIES-1357 takes the approach
of "installing" shared content before installable dependencies which solves the
issue and seems to be the right way to go.
> BundleException "bundle is already installed" when the Preferred-Provider
> subsystem header points to a bundle.
> --------------------------------------------------------------------------------------------------------------
>
> Key: ARIES-1416
> URL: https://issues.apache.org/jira/browse/ARIES-1416
> Project: Aries
> Issue Type: Bug
> Components: Subsystem
> Reporter: John Ross
> Assignee: John Ross
>
> When using the Preferred-Provider header that specifies a bundle, an
> exception similar to the following is received:
> org.osgi.framework.BundleException: A bundle is already installed with the
> name "bundle.c.jar" and version "0.0.0"
> at
> org.eclipse.osgi.container.ModuleContainer.install(ModuleContainer.java:254)
> at org.eclipse.osgi.storage.Storage.install(Storage.java:513)
> at
> org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:146)
> at
> org.eclipse.equinox.internal.region.BundleIdBasedRegion.installBundle0(BundleIdBasedRegion.java:117)
> at
> org.eclipse.equinox.internal.region.BundleIdBasedRegion.installBundleAtLocation(BundleIdBasedRegion.java:97)
> at
> org.apache.aries.subsystem.core.internal.BundleResourceInstaller.installBundle(BundleResourceInstaller.java:197)
> at
> org.apache.aries.subsystem.core.internal.BundleResourceInstaller.install(BundleResourceInstaller.java:182)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.installAriesSubsystem(SubsystemResourceInstaller.java:98)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.installSubsystemResource(SubsystemResourceInstaller.java:159)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.installRawSubsystemResource(SubsystemResourceInstaller.java:130)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.install(SubsystemResourceInstaller.java:38)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.installAriesSubsystem(SubsystemResourceInstaller.java:113)
> at
> org.apache.aries.subsystem.core.internal.SubsystemResourceInstaller.install(SubsystemResourceInstaller.java:36)
> at
> org.apache.aries.subsystem.core.internal.InstallAction.run(InstallAction.java:77)
> at
> org.apache.aries.subsystem.core.internal.InstallAction.run(InstallAction.java:30)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:646)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:690)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:278)
> at
> org.apache.aries.subsystem.core.internal.BasicSubsystem.install(BasicSubsystem.java:65)
> ...
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