Do you have a version of Cactus previous to when the problems occurred?
Note any differences?   Just a thought!

ps, i laughed at the grin!

----- Original Message -----
From: "Vincent Massol" <[EMAIL PROTECTED]>
To: "'Log4J Users List'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, February 28, 2002 1:43 PM
Subject: RE: [The plot continues] org/apache/log4j/Logger NoClassDefFoundError
withversion 1.1.3


> Kevin,
>
> First, thanks for your help.
>
> > -----Original Message-----
> > From: Kevin Steppe [mailto:[EMAIL PROTECTED]]
> > Sent: 28 February 2002 20:02
> > To: Log4J Users List
> > Subject: Re: [The plot continues] org/apache/log4j/Logger
> > NoClassDefFoundError withversion 1.1.3
> >
> > Ok, I'll wade in on this one a bit:
> >
> > A) Have you tried the Cactus mailing list?  This seems intimately tied
> to
> > Cactus.
>
> <huge grin/>
>
> I am the creator of Cactus (I would answer to myself on the list if I
> knew the answer, though ;-) ). What I am debugging is Cactus itself !
>
> That said, you are right, it is linked to Cactus :-)
>
> > B) Note that if Cactus can not load the PropertyConfigurator class it
> will
> > pretend to be fine, but in fact do nothing (this seems like very very
> > dangerous
> > behvior in logging to me -- "Hey I can't actually do any logging;
> instead
> > I'll
> > ignore it and not tell you!"
>
> I don't agree. This logging is purely internal to Cactus and has nothing
> to do with application logging. And I wanted to make it transparent for
> the user.
>
> That said, I am changing this behaviour. The new one will be : no cactus
> logging unless you tell it so.
>
> > So my interpretation of your trials:
> >     2/ As you said, log4j.jar not found, Cactus does nothing.
>
> Yes, I know, that's why I removed my log4j.jar ! To prove that no other
> log4 classes were in the classpath anywhere ! (Please reread my email
> slowly).
>
> >     3/ As you said, log4j.jar found and Cactus bombs out mysteriously
>
> yep, that's what I'd like to know ... :-)
>
> >     4/ Here I think Cactus is not finding log4j.jar and so it
> continues.
> > Are
> > you getting a log file, statements, etc from this case?  If not case 4
> is
> > the
> > same as case 2.
>
> Yep, it is the same as case 2. Except it proves that Cactus is not using
> the Logger anywhere in its code (as the log4j.jar is version 1.1.3 and
> we know from case 2/ that no other log4j classes are present in any
> other classloaders).
>
> >
> > Some suggestions:
> > A) try Cactus mailing list
>
> see above
>
> > B) Find any other log4j.jar on the system and remove it.  Try running
> > everything
> > (including WL) except your Cactus app and see if something fails.
> Perhaps
> > there
> > is an unrelated log4j instance used by a different app that's fouling
> up
> > the VM
> > somehow.
>
> I'd like that but it seems that no, there is no other log4j anywhere
> else. See above. BTW if I remove Cactus, I have nothing left ... (Cactus
> is the application I am testing using itself).
>
> > C) recompile (again) Cactus using log4j 1.1.3, rebuild your ear,
> shutdown
> > and
> > restart WL, etc etc
>
> done that thousands of time.
>
> > D) Send me the full stack trace when it bombs.
> >
>
> will do.
>
> Thanks
> -Vincent
>
>
> > Vincent Massol wrote:
> >
> > > Following the thread "org/apache/log4j/Logger NoClassDefFoundError
> with
> > > version 1.1.3" here are my findings (and more questions) :
> > >
> > > 1/ I am using Log4j in a WAR application (inside an EAR) in WL 6.1
> SP2
> > > 2/ I tested the following structure :
> > >
> > > myear.ear
> > >   |_ mywar.war
> > >     |_ WEB-INF/lib
> > >       |_ cactus.jar
> > >     |_ WEB-INF/classes
> > >       |_ classes called by cactus.jar
> > >
> > > This worked fine (there was no log4j.jar and cactus does not try to
> log
> > > if log4j is not in the classpath).
> > >
> > > 3/ Then I had the following structure (which is the structure I was
> > > having problem with) :
> > >
> > > myear.ear
> > >   |_ META-INF
> > >     |_ manifest.mf (contains a CLASS-PATH: log4j.jar)
> > >   |_ log4j.jar (VERSION 1.1.3 !!)
> > >   |_ mywar.war
> > >     |_ WEB-INF/lib
> > >       |_ cactus.jar
> > >     |_ WEB-INF/classes
> > >       |_ classes called by cactus.jar
> > >
> > > This failed with the error "org/apache/log4j/Logger"
> > > NoClassDefFoundError. This means that :
> > > a/ cactus was able to "see" log4j.jar from its classloader
> > > b/ the only log4j.jar file it could see was the one under myear.ear
> and
> > > thus in version 1.1.3 !
> > >
> > > 4/ Then I tested with the following structure :
> > >
> > > myear.ear
> > >   |_ mywar.war
> > >     |_ WEB-INF/lib
> > >       |_ cactus.jar
> > >       |_ log4j.jar (VERSION 1.1.3 !!)
> > >     |_ WEB-INF/classes
> > >       |_ classes called by cactus.jar
> > >
> > > This worked fine ! This proves that Cactus is NOT using the Logger
> > > class.
> > >
> > > Question : Where does the "org/apache/log4j/Logger"
> NoClassDefFoundError
> > > comes from ?
> > >
> > > Note: It cannot come from a log4j.jar that would be in the system
> > > classpath because in step 2/ the cactus.jar would have "seen"
> log4j.jar
> > > (the webapp CL is a child of the system CL).
> > >
> > > What am I doing wrong ? :-)
> > >
> > > Thanks
> > > -Vincent
> > >
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>
>
>
>
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