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https://issues.apache.org/jira/browse/FELIX-3713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496808#comment-13496808
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TangYong commented on FELIX-3713:
---------------------------------
I think that the problem needs to be fixed in felix, I offer a real use case as
following:
On glassfish starting, there is a Start Level thread to adjust Start Level, in
the process of executing the Start Level thread, I have a bundle tracker to
trace some bundle to start the bundle in order to finish something. I used
bundle.start(Bundle.START_TRANSIENT) to start the bundle while tracing the
bundle. However, the bundle's activator was not executed. If I used
bundle.start() method to start the bundle while tracing the bundle, although
the bundle's activator was executed, the bundle's ondemand starting(on some
cases, the bundle maybe started by other handling logic) disappeared because
bundle.start() method keeped bundle's state persisted.
So, I wish that felix team can fix it.
Thanks.
--Tang
> Bundle.start() returns without starting the bundle
> --------------------------------------------------
>
> Key: FELIX-3713
> URL: https://issues.apache.org/jira/browse/FELIX-3713
> Project: Felix
> Issue Type: Bug
> Components: Framework
> Affects Versions: framework-4.0.2
> Reporter: Sahoo
> Fix For: framework-4.2.0
>
>
> See email exchange between Sahoo & Richard that happened in dev alias on 16th
> Oct 2012 for issue details:
> > While investigating some issues in GlassFish, what we are seeing is that
> > even if our code is calling bundle.start(START_TRANSIENT), the bundle is
> > not getting started immediately, nor is the code blocking. It simply
> > returns without Bundle's activator getting called and bundle.getState() ==
> > RESOLVED. We see this happening when there is a start level change in
> > progress. We are currently using Felix 4.0.2. Looking at the code, I see
> > this to be by design, but isn't it a non-compliant behavior? Should
> > bundle.start() not wait until the bundle is started?
> The spec has always been a little lenient about how start levels are
> processed to give leeway to the frameworks. For us, we viewed this as
> somewhat of a race condition between threads starting bundles and the start
> level thread.
> However, in the transient case, I wouldn't expect it to remain in RESOLVED
> state. If its start level wasn't met, it should have thrown an exception. Yet
> there is a chance in the transient case that it could start
> asynchronously...not sure if this would really be problematic for you or
> not...
> But it shouldn't remain in the RESOLVED state. Looking at the code, I think
> there is a bug in this scenario where a transient bundle that is handled
> asynchronously will not actually end up getting started since the start level
> thread checks the persistent state of the bundle, which is not set for
> transient bundles.
> You could definitely open up a bug for this last issue...
> -> richard
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