[logback-user] Unable to use SLF4j's MDC with logback 0.9.7.

Pascal Jacob zartc at wanadoo.fr
Tue Aug 14 19:11:04 CEST 2007


Hello dear logback commiters,

I'm trying to use SLF4j MDC in my multithread program and i'm having the 
following error:

SLF4J: Failed to load class "org.slf4j.impl.StaticMDCBinder".
SLF4J: See http://www.slf4j.org/codes.html#no_static_mdc_binder for 
further details.
Exception in thread "main" java.lang.NoClassDefFoundError: 
org/slf4j/impl/StaticMDCBinder
at org.slf4j.MDC.<clinit>(MDC.java:70)
at fr.mipih.jms.AsynchConsumer.<init>(AsynchConsumer.java:50)
at fr.mipih.jms.AsynchConsumer.main(AsynchConsumer.java:182)

I have the following jars in the classpath :

slf4j-api-1.4.2.jar
jcl104-over-slf4j-1.4.2.jar
logback-classic-0.9.7.jar
logback-core-0.9.7.jar

I have check the content of the jars and in fact StaticMDCBinder is 
nowhere to be found (should be in logback-classic-0.9.7.jar as I 
understand it)

I have checked the repository at http://svn.qos.ch/repos/logback/trunk 
and found that StaticMDCBinder was added in 
logback-classic\src\main\java\org\slf4j\impl back somewhere in may.

I have no [easy] way to compile the new source code on my platform since 
logback use maven (don't have it, don't want to install it, don't want 
to learn how to use it).

Isn't it time to release a 0.9.8 or something (why not a 1.0) so that 
slf4j's MDC (and other bug fixes) are available to the majority ?

TIA.

ZC.




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