I'm getting the same problem. my log4j.properties is in the root of my
source folder and it's giving me this issue.

On Mar 12, 10:25 pm, Rajeev Dayal <[email protected]> wrote:
> Can you post a copy of your log4j.properties file?
>
> On Thu, Mar 11, 2010 at 12:45 PM, AJ Chen <[email protected]> wrote:
> > yes, log4j.properties is copied by the build. the app uses it.  the warning
> > message is weird.  thanks.
>
> > On Thu, Mar 11, 2010 at 8:10 AM, Rajeev Dayal <[email protected]> wrote:
>
> >> If you have your log4j.properties file at the root of your source tree, it
> >> should automatically be copied over to war/WEB-INF/classes whenever Eclipse
> >> performs a build of your project; you should not have to copy it over
> >> manually.
>
> >> I'm not sure why you're getting the error with regard to
> >> Datanucleus.Connection; I've added Don to this thread; he may have some
> >> insight into this.
>
> >> On Thu, Mar 11, 2010 at 3:33 AM, AJ Chen <[email protected]> wrote:
>
> >>> I have the default log4j.properties in WEB-INF/classes dir. but the
> >>> warning always comes up. the file is visible because I can change the log
> >>> level to ERROR to get rid of the warning.
> >>> -aj
>
> >>> On Fri, Feb 19, 2010 at 7:24 PM, Rusty Wright 
> >>> <[email protected]>wrote:
>
> >>>> I think you can simply put the log4j.properties file in the
> >>>> WEB-INF/classes dir and you don't need any appengine-web.xml stuff for 
> >>>> it.
> >>>>  Log4j looks for its configuration file "on the classpath" which means it
> >>>> looks in WEB-INF/classes (and also in all of the jars in the lib 
> >>>> directory).
>
> >>>> AJ Chen wrote:
>
> >>>>> I have  log4j config in appengine-web.xml,
> >>>>> <system-properties>
> >>>>>        <property name="java.util.logging.config.file"
> >>>>> value="WEB-INF/logging.properties"/>
> >>>>>        <property name="log4j.configuration"
> >>>>> value="file:WEB-INF/classes/log4j.properties"/>
> >>>>>        <property name="monitor.config.file"
> >>>>> value="WEB-INF/monitor.properties"/>
> >>>>>    </system-properties>
> >>>>>   but GAE still complains about it:
> >>>>> log4j:WARN No appenders could be found for logger
> >>>>> (DataNucleus.Connection).
> >>>>> log4j:WARN Please initialize the log4j system properly.
>
> >>>>> Is there anything else that should be set?
>
> >>>>> thanks,
> >>>>> -aj
>
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> >>>> --
> >>>> 0x2B | ~0x2b  --  Hamlet
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> >>> --
> >>> AJ Chen, PhD
> >>> Chair, Semantic Web SIG, sdforum.org
> >>>http://web2express.org
> >>> twitter @web2express
> >>> Palo Alto, CA, USA
> >>> 650-283-4091
> >>> *Building social media monitoring pipeline, and connecting social
> >>> customers to CRM*
>
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>
> > --
> > AJ Chen, PhD
> > Chair, Semantic Web SIG, sdforum.org
> >http://web2express.org
> > twitter @web2express
> > Palo Alto, CA, USA
> > 650-283-4091
> > *Building social media monitoring pipeline, and connecting social customers
> > to CRM*
>
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