I’ve created a RCP plugin inside which I’ve used logback with slf4 that are part of eclipse platform.
I’ve also created a plugin test that I’m launching by Run As->Junit Plugin Test (see the picture below).

Unfortunatelly I’m getting this error
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
It seems to be a classpath error but I don’t really know why; Can anyone help me?
Solved.
The problem seemed to be in a sort of incompatibility of slf4/logback plugins distributed in eclipse platform (in my case Eclipse Indigo R2 32bit).
I solved unistalling those plugins and following the instructions in
logback doc