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Message-ID: <90a8d1c00805280552i79441045r68274113dc48d294@mail.gmail.com>
Date: Wed, 28 May 2008 14:52:35 +0200
From: "Stefan Guggisberg" <stefan.guggisberg@day.com>
Reply-To: stefan.guggisberg@day.com
Sender: stefan.guggisberg@gmail.com
To: users@jackrabbit.apache.org
Subject: Re: Shutdown hooks and classloader leak
In-Reply-To: <17509737.post@talk.nabble.com>
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References: <17509737.post@talk.nabble.com>

On Wed, May 28, 2008 at 12:33 PM, Roman Puchkovskiy
<roman.puchkovskiy@blandware.com> wrote:
>
> Hi.
>
> Some classes in Jackrabbit (for instance, TransientFileFactory) always
> register shutdown hooks. So, if jackrabbit classes were loaded by web-app
> classloader, they will not be released when web-app is undeployed. Looks
> like this should lead to classloader leak.
> Am I missing something? And if this causes leaks, is there way to cancel
> such hooks when undeploying web-application?

is this a pure theoretical issue or have you actually experienced
"out of perm space" errors?

i agree with your analysis that the addShutdownHook call in
TransientFileFactory is a potential classloader related memory
leak. however, so far i haven't heard of any "out of perm space"
reports.

OTOH, if this is a real world issue we should probably address it.

BTW: TransientFileFactory is part of jcr-commons which could/should
be deployed as a shared library.

cheers
stefan

>
> Thanks in advance.
> --
> View this message in context: http://www.nabble.com/Shutdown-hooks-and-classloader-leak-tp17509737p17509737.html
> Sent from the Jackrabbit - Users mailing list archive at Nabble.com.
>
>