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https://issues.apache.org/jira/browse/FELIX-674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623345#action_12623345
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Don Brown commented on FELIX-674:
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Ah, good point. I don't remember the exact case where we saw this happen, but
I'll ask around tomorrow. However, if you have it fixed, that's great to hear.
Easier debugging and bundle fragment support, horray! :)
> Better error reporting when loading bundle classes
> --------------------------------------------------
>
> Key: FELIX-674
> URL: https://issues.apache.org/jira/browse/FELIX-674
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Affects Versions: felix-1.0.4
> Reporter: Don Brown
> Assignee: Karl Pauls
> Fix For: felix-1.2.0
>
>
> We (Atlassian) are in the middle of a rollout of our new plugin
> framework that has Felix at its core. The plugin system operates on
> top of existing Java webapps as an embedded container, with plugins
> exposing XML configuration defining what plugin extension points they
> implement. When the plugin is started, the web application needs to
> resolve that class name to a class instance, which is currently
> implemented using Bundle.loadClass().
> However, the Bundle.loadClass() method is swallowing the root cause of
> any exception causing the class to not be resolved, so if it is trying
> to load FooPlugin, which fails due to a missing class dependency of
> FooPlugin, Bundle.loadClass() throws a ClassNotFoundException that
> says FooPlugin wasn't found, which is misleading. I traced it down
> (version 1.0.4) to ModuleImpl.getClass(), which swallows any
> exceptions by only logging them as a warning. Unfortunately, the warn
> messages are given a lower priority by the host application due to a
> number of warnings that happen as a natural part of the loading
> sequence.
> This ticket asks for better error reporting ideally through proper chained
> exceptions.
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