Re: [jetty-user] WebAppClassLoader Synchronization

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Parent Message unknown Re: [jetty-user] WebAppClassLoader Synchronization

by Gregw :: Rate this Message:

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Kevin Conaway wrote:
> Thanks Greg.
>
> What is the synchronization actually guarding?  Can you explain the
> concurrency issues at stake here?


Kevin,

No I can't actually.   It does not appear necessary.

But we are deep into the phase for building 6.1.21 and I'm loath to just
pull out synchronization when we wont have a few weeks to test it before
a release.

So please raise a JIRA and we will investigate soon after 6.1.21


If anybody has a few cycles free.... could they perhaps cast some eyeballs
over this as well and give a 3rd opinion if that synchronization is needed.
Maybe if 6.1.21 is delayed a few days, we could consider this if we are all
100% sure.

cheers

> On Tue, Sep 15, 2009 at 10:40 PM, Greg Wilkins <gregw@...
> <mailto:gregw@...>> wrote:
>
>
>     Kevin,
>
>     I would be a little loath to take out that synchronization without a
>     lot more
>     analysis and thought.
>
>     However, it is pretty easy in Jetty to provide your own classloader,
>     so you
>     should be able to wrap the jetty classloader with something that uses a
>     concurrentHashMap as a cache on the loadResources path.
>
>     But can you raise a JIRA on us anyway for this, as this is something
>     we should
>     look at (albeit slowly and with consideration).
>
>
>     cheers
>
>

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