Hi

I can underwrite on that - commons-logging in combination with newer versions 
of Log4J spells trouble if there are multiple versions around

Hermod 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Holger Hoffstätte
Sent: Wednesday, July 02, 2008 1:45 PM
To: [email protected]
Subject: Re: [aspectj-users]Exception 
inthread"main"java.lang.NoClassDefFoundError

Robert,

I saw that the error originates from commons-logging. I remember vaguely that 
Websphere has a bundled version of commons-logging - is that true? It might be 
the case that the container's class loading of clogging conflicts with LTW's 
idea of a class hierarchy. Try to switch to parent-last classloading or 
alternatively replace the container's commons-logging with slf4j (you'll need 
jcl-over-slf for the clogging interfaces, slf4j-api for the slf4j interfaces 
and slf4j-log4j for the backend). The jcl-over-slf intrefaces are 
binary-compatible with clogging but the implementation exhibts less "dynamic" 
(read: often failing) behaviour at runtime.

Holger

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