[logback-user] Jetty conflict

Thorbjoern Ravn Andersen ravn at runjva.com
Thu Feb 4 19:29:08 CET 2010

Ceki Gülcü skrev:
> Assuming jetty uses child-first a.k.a. local-first class loading 
> order, I would recommend to bundle slf4j and logback jar in your war 
> file.
> Jetty used to have the opposite class loading order, i.e. 
> parent-first, but I am  under the impression that it changed to 
> local-first class loading in recent versions.
Default is servlet specification behaviour, but it is very easy to alter 
to parent-first.

We use that to allow all web applications in the container to see the 
global slf4j and logback instances, as we want them to go together (for 

  Thorbjørn Ravn Andersen  "...plus... Tubular Bells!"

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