ClassCastException on BundleActivator when deploying bundle with OBR
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Key: FELIX-702
URL: https://issues.apache.org/jira/browse/FELIX-702
Project: Felix
Issue Type: Bug
Components: Bundle Repository (OBR)
Reporter: Guillaume Sauthier
I fall on this issue yesterday.
I was using a Felix compiled with the org.osgi.framework;version=1.3.0 (OSGi
R4.0), compiled before the R4.1 API were released.
Then, I updated my working copy of Felix, and I did a mvn install. So I have
compiled the OSGi R4.1 API and placed it in my ~/.m2/repository.xml (thanks to
the maven-bundle-plugin).
Now, what happen on the execution side ?
I understood (reading some recent mails) that the OBR, if it finds a more
recent version of a package already installed, will install it.
Nice behavior, but the core packages (I think the ones that comes from the
System bundle) should be excluded from the update list.
At least, I had a problem with the org.osgi.framework package.
It is exported in version 1.3.0 from the System bundle, but OBR downloaded a
newer bundle (org.osgi.core:1.2.0) that contains the same package in version
1.4.0.
It is downloaded as a dependency computed by OBR when installing a classic
bundle (no import requirements on a specific org.osgi.framework version), so
the primary installed bundle ends up to be linked to the org.osgi.core bundle.
Finally, when Felix try to activate that bundle, it fails with a
ClassCastException, because the BundleActivator interface used by the starting
bundle is from the org.osgi.core ClassLoader and because Felix expects the
BundleActivator interfaces that comes from the System bundle.
I know this is really a border case situation, because I updated my felix
sources at the wrong time and I did not relaunch my Felix gateway to use the
latest org.osgi.framework package version. But anyway, the bug/issue is there
...
Any idea to solve it ?
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