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Apr 1, 2009 12:52:13 PM

turnguard
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Joined: Mar 22, 2008
Posts: 34
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Sesame and logging

hi there!

in my project i'm using the sesame 2.2.4 api and the aperture api which needs the rdf2go
[ rdf2go.impl.sesame22-4.7.0.jar ]

my project only deploys correctly [ i'm using netbeans 6.5 ] having the following jars on my classpath

slf4j-simple-1.5.6.jar
log4j-over-slf4j-1.5.6.jar
slf4j-api-1.5.0.jar [ from the sesame download ]
slf4j-jdk14-1.5.0.jar [ from the sesame download ]
logback-core-0.9.9.jar
logback-classic-0.9.9.jar
jcl-over-slf4j-1.5.0.jar
commons-logging.jar

and still , when i redeploy my project from the netbeans ide - i get nullpointerexceptions logback with some slf locationaware stuff in the stack trace where there arent any [ only restarting the whole server helps ].

i read in one post that you should get rid of log4j.jar - what if i have in my server lib and need it for another project?

is there any real reason , one can't do a project with just java.util.logging or log4j?

also any help concerning logging in a webapplication really appreciated

wkr
www.turnguard.com
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Apr 1, 2009 2:16:57 PM

james
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Canada
Joined: Jul 21, 2005
Posts: 650
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Re: Sesame and logging

The jars: jcl-over-slf4j-1.5.0.jar and commons-logging.jar conflict with each other. Try removing the one of them.

The jars: slf4j-jdk14-1.5.0.jar and logback-core-0.9.9.jar also conflict with each other. Try removing logback-core-0.9.9.jar and logback-classic-0.9.9.jar.

Tomcat has it own logger that speaks the jdk14 API. By removing the logback jars your application should start using tomcat's logger.
----------------------------------------
Sesame Consultant
http://leighnet.ca
http://jamesrdf.blogspot.com
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Apr 1, 2009 3:12:45 PM

turnguard
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Joined: Mar 22, 2008
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Re: Sesame and logging

hi james, thanks a log! :)

since i also replaced some logging jars in my tomcat/common/lib it works. thank god,
jackrabbit is happy with the slf4j jars from the sesame download and doesnt need any commons-logging stuff.

i need them in my server lib, since i'm accessing a jackrabbit repository via jndi.

thanks and
wkr www.turnguard.com
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