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From Gary Gregory <garydgreg...@gmail.com>
Subject Re: IllegalAccessError on MapLookup.newMap
Date Thu, 20 Oct 2016 19:17:28 GMT
On Thu, Oct 20, 2016 at 12:04 PM, Jeremy Heiler <jeremyheiler@gmail.com>
wrote:

> On Thu, Oct 20, 2016 at 1:26 PM, Jeremy Heiler <jeremyheiler@gmail.com>
> wrote:
> >
> > On Thu, Oct 20, 2016 at 12:58 PM, Gary Gregory <garydgregory@gmail.com>
> wrote:
> > >
> > > From the stack trace, as you mention, this is the error:
> > >
> > > Caused by: java.lang.IllegalAccessError: tried to access method
> > >
> org.apache.logging.log4j.core.lookup.MapLookup.newMap(I)
> Ljava/util/HashMap;
> > > from class org.apache.logging.log4j.core.lookup.MainMapLookup
> > >
> > > These two classes should come from the same package in the same jar.
> > > Log4jServletContainerInitializer is in a different jar, which should
> not
> > > matter.
> > >
> > > Hm... how can this error happen? Could each class be loaded from
> different
> > > versions of the core jar? How is that even possible? Or did the web
> > > container explode the jars somehow? ...
> >
> > As I said, my project only contains the one version of log4j. (Unless
> Tomcat is sneaking something in that I'm not seeing.)
>
> Forgive me, for I have sinned. I never did a 'clean' after updating the
> version in my POM. Apparently Inteillj's "rebuild project" feature does not
> do that. So, the exploded WAR file in target/ had both versions of log4j.
>
> Sorry for the noise...
>

All clear! ;-)

Gary



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