Re: JBoss 4 vs FOP commons logging clash - solved

[Louis . Masters]

Thanks for the direction and the JCL wiki.  It helped in debugging what was going on.

OK, I have made some progress and have gotten them to work together.  My java classpath when running JBoss now looks like this (omitting unneccessary jars):

\prod_jars_091_14\avalon-framework-4.2.0.jar;\prod_jars_091_14\batik-all-1.6.jar;\prod_jars_091_14\serializer-2.7.0.jar;\prod_jars_091_14\xalan-2.7.0.jar;\prod_jars_091_14\xercesImpl-2.7.1.jar;\prod_jars_091_14\xml-apis-1.3.02.jar;\prod_jars_091_14\fop.jar;C:\jdk14\lib\tools.jar;C:\jboss-4.0.3SP1\bin\\run.jar;;\prod_jars_091_14\commons-io-1.1.jar;\prod_jars_091_14\commons-logging-1.0.4.jar;C:\jboss-4.0.3SP1\lib\log4j-boot.jar

The final change that seemed to fix this is the addition of the log4j-boot.jar directly to the classpath.  It exists in the root lib directory and the server's lib directory has the additional log4j.jar.

I have not tried any different ordering, but at least this gets it to boot and I can now render PDFs under 0.91.  I can probably move the commons and log4j jars before the tools.jar, but I have not had a chance to experiment with it.

I'm not saying that this is the best solution, but it seems to be a solution.  If I find anything else I will post it.

-Lou


Jeremias Maerki <[EMAIL PROTECTED]> wrote on 02/17/2006 15:37:03:

> Have a look at the JCL Wiki. Maybe that'll help you. There's something
> specific to JBoss. It's probably all about the right placement of the
> JARs.
> http://wiki.apache.org/jakarta-commons/Logging/FrequentlyAskedQuestions
>
> I've heard a number of time that some people talk bad about JCL because
> of class loading problems. I'm not familiar with the details. Maybe you
> stumbled upon one of these problems.
>
> Please keep us informed about any solutions you find for this. Maybe I
> have some time on Sunday to download, install and try JBoss.
>
> On 17.02.2006 20:28:12 Louis.Masters wrote:
> > I'm running into a strange logging jar file issue when trying to run FOP
> > 0.91 under JBoss 4.0.3.  If I include the FOP logging jar
> > (commons-logging-1.0.4.jar) in my java classpath and then boot JBoss, I
> > get the following boot error:
> >
> > <snip/>
> > Caused by: org.apache.commons.logging.LogConfigurationException:
> > org.apache.commons.logging.LogConfigurationException: No suitable Log
> > constructor [Ljava.lang.Class;@c789fb for
> > org.apache.commons.logging.impl.Log4JLogger (Caused by
> > java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by
> > org.apache.commons.logging.LogConfigurationException: No suitable Log
> > constructor [Ljava.lang.Class;@c789fb for
> > org.apache.commons.logging.impl.Log4JLogger (Caused by
> > java.lang.NoClassDefFoundError: org/apache/log4j/Category))
> >         at
> > org.apache.commons.logging.impl.LogFactoryImpl.
> newInstance(LogFactoryImpl.java:543)
> >         at
> > org.apache.commons.logging.impl.LogFactoryImpl.
> getInstance(LogFactoryImpl.java:235)
> > <snip/>
> >
> > When I use JBoss's logging jar (1.0.3) and omit the two commons-logging
> > jars from my classpath, JBoss boots OK, but I get the following error from
> > FOP:
> >
> > <snip/>
> > at
> > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.
> processConnection(Http11Protocol.java:744)
> >     at
> > org.apache.tomcat.util.net.PoolTcpEndpoint.
> processSocket(PoolTcpEndpoint.java:527)
> >     at
> > org.apache.tomcat.util.net.MasterSlaveWorkerThread.
> run(MasterSlaveWorkerThread.java:112)
> >     at java.lang.Thread.run(Thread.java:536)Caused by:
> > java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
> >     at org.apache.fop.render.RendererFactory.(RendererFactory.java:47)
> >     at org.apache.fop.apps.FOUserAgent.(FOUserAgent.java:83)
> >     at com.lognet.reports.engine.FOPGenerator.(FOPGenerator.java:68)
> >     at com.lognet.reports.engine.LNReport.renderReport(LNReport.java:1058)
> > <snip/>
> >
> > Does someone know how to get the two implementations to "play nice" with
> > one another?  I'm not that familiar with commons logging so I am a bit
> > lost.
> >
> > Thanks,
> > Lou
>
>
>
> Jeremias Maerki
>
>
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