RE: Debugging class loading

[Michael Petres <mp...@rogers.com>]

We have a shrink-wrapped product. Many of our support calls have to deal
with classloader issues, to be more specific, as our application is deployed
in different environments, the support engineers are spending lots of time
ensuring that the right classes are loaded from the right places...

We were thinking of being able to generate a class load dump (through our
custom class loader) to facilitate the trouble shooting procedure....
Perhaps this should be a feature of tomcat. Until then we need to use our
own class loader, nothing fancy...

Michael Petres
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
InnovObjX Corp.
Web: www.innovobjx.com
Tel: 905-729-2235 x3
Fax: 905-729-2235
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-----Original Message-----
From: Cox, Charlie [mailto:ccox@cincom.com]
Sent: Tuesday, September 10, 2002 7:49 AM
To: 'Tomcat Users List'
Subject: RE: Debugging class loading

before you go hacking with your own classloader, have you reviewed the
classloader doc? What kind of problems are you having?

Only classes in each web application are loaded by the web app's
classloader. If you have classes in \common\lib or \tomcat\lib, they are
loaded by StandardClassLoader.

Charlie

> -----Original Message-----
> From: Michael Petres [mailto:michaelp@innovobjx.com]
> Sent: Sunday, September 08, 2002 9:32 PM
> To: tomcat-user@jakarta.apache.org
> Subject: Debugging class loading
>
>
> Folks,
>
> I have run into some problems with class loading in my
> servlet... I would like
> to debug the loading of ALL classes by tomcat. One option I
> was thinking of
> was to (for debugging) add a the following under the <context> tag :
>
>
> <Loader className="org.apache.catalina.loader.WebappLoader"
> delegate="false"
> reloadable="false" checkInterval="15" debug="99"
>
> cloaderClass="my.custom.CustomClassLoader"/>
>
> where CustomClassLoader would extend WebappClassLoader. Is
> this feasible ?
> Perhaps there is a better option....
>
> I would appreciate any ideas as I am stuck with this problem...
>
> Thanx,
> Michael Petres
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> InnovObjX Corp.
> Web: www.innovobjx.com
> Tel: 905-729-2235 x3
> Fax: 905-729-2235
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>

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