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Re: [jetty-users] SLF4J in Jetty
Have you read:

http://wiki.eclipse.org/Jetty/Tutorial/Sifting_Logs_with_Logback

? I have followed this tutorial and successfully use slf4j for logging within Jetty.

Then, have a look at start.ini, especially the OPTIONS-Flag. The order in which the particular items appear is relevant. Also try java - jar start.jar --list-options. I guess in your case your custom library just has been loaded before slf4j.

Regards,
Andreas

On Fri, Nov 23, 2012 at 11:26 AM, Oliver Wulff <owulff@xxxxxxxxxx> wrote:
Hi there

I've read that the slf4j library must be deployed thus slf4j is used as the logging framework. I've deployed that in <jetty.home>/lib and configured debug level. Logging works fine.

I've deployed some libraries (custom authenticator) in <jetty.home>/lib/ext. Also these libraries uses SLF4J but I get a ClassNotFoundException...

java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
    at org.apache.cxf.fediz.core.config.FederationContext.<clinit>(FederationContext.java:54)

Does the libraries in lib/ext not see the classes of <jetty.home>/lib?

Then I've deployed slf4j again in lib/ext. Now, I don't see logs anymore even debug is still set.

Thanks
Oli


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