[logback-user] jul-to-slf4j conflicts with logback-classic

cowwoc cowwoc at bbs.darktech.org
Mon Sep 29 20:36:32 CEST 2008


Maybe the problem has to do with when slf4jBridgeHandler gets invoked. When
does your osgi application invoke it? Mine only invokes it in a
ServletContextListener. Perhaps something is getting logged beforehand?

Gili


ekke wrote:
> 
> I'm using
> 
> logback-classic
> logback-core
> jcl-over-slf4j
> jul-to-slf4j
> log4j-over-slf4j
> slf4j-api
> 
> all together with no problems
> 
> ...also invoking slf4jBridgeHandler
> 
> but inside an osgi application, not from servlet
> 
> ekke
> 
> cowwoc schrieb:
>> Ceki,
>>
>> Any idea about this issue? We can discuss this in more detail on IRC if
>> needed.
>>
>> Gili
>>
>>
>> cowwoc wrote:
>>   
>>> Hi,
>>>
>>> If I deploy:
>>>
>>> slf4j-api
>>> logback-classic
>>> logback-core
>>> jul-to-slf4j
>>>
>>> I get:
>>>
>>> Deploying application in domain failed; Logging factory implementation
>>> cannot be null. See also http://www.slf4j.org/codes.html#null_LF
>>>
>>> but if I remove jul-to-slf4j from the classpath it works just fine
>>> (except, obviously, jul-to-slf4j is disabled).
>>>
>>> I am invoking SLF4JBridgeHandler.install() from within a
>>> ServletContextListener. Perhaps this is too late somehow?
>>>
>>> What am I doing wrong?
>>>
>>> Thank you,
>>> Gili
>>>
>>>     
>>
>>   
> 
> 
> -- 
> 
> ekkehard gentz
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