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From "Marc F." <marc.mus...@gmail.com>
Subject Re: Axis2 and Tomcat 5.0.28 commons-logging-api
Date Mon, 01 Sep 2008 01:51:07 GMT
I´ve already tried that, but the same exception happens
(org.apache.commons.logging.LogConfigurationException: User-specified log
class ' org.apache.commons.logging.impl.Log4JLogger' cannot be found or is
not useable.)

Thank you.

2008/8/31 Davanum Srinivas <davanum@gmail.com>

> How about removing commons-logging jar in WEB-INF/lib?
>
> -- dims
>
> On Sun, Aug 31, 2008 at 10:34 AM, Marc F. <marc.musico@gmail.com> wrote:
> > First of all, I would like to thank everyone from the Apache Axis2
> project.
> > I am using the newer version 1.4.1 of Axis2, with Java 1.4.2. Thank you
> very
> > much for the efforts in order to make Axis2 compatible to that version of
> > Java. I work at a software company that still uses Java 1.4.2, that´s why
> we
> > decided to use Axis2. Othewise we would discard Axis2. Not to mention the
> C
> > language compatibility that Axis2 has. We also use C language in our
> > development, so probably one day we will also take advantage of this
> feature
> > of Axis2. Thank you, Axis2 team!
> >
> > Well, now my question...
> >
> > Since the jar file "commons-logging-1.1.1.jar" comes with Axis2, in the
> > WEB-INF/lib/ directory of its war file, I believe Axis2 should use the
> > version 1.1.1 of the commons-logging API.
> >
> > Tomcat 5.0.28 uses by default the commons-logging version 1.0.4. The
> > "commons-logging-api.jar" file that Tomcat 5.0.28 uses by default is
> located
> > in [CATALINA_HOME]/bin/ directory. I believe this jar file is loaded when
> we
> > startup Tomcat.
> >
> > If I do not modify anything in the environment, that is, if I accept a
> > default environment, with the "axis2.war" file installed in the
> > [CATALINA_HOME]/webapps/ directory, exactly according to the Axis2
> > installation manual, everything seems to be working correctly. But, I
> think
> > everything ONLY seems to be working correctly, because I have the
> following
> > question: when I call the Axis2 Happiness page I see that the
> > commons-logging API version that seems to be used by Axis2 is the one
> > located inside "commons-logging-api.jar" in the [CATALINA_HOME]/bin/
> > directory, and not the one located inside "commons-logging-1.1.1.jar" in
> the
> > [CATALINA_HOME]/webapps/axis2/WEB-INF/lib/ directory. Isn´t that strange?
> I
> > mean, if Axis2 should use the version 1.1.1, isn´t there something wrong
> in
> > this default environment?
> >
> > I understand the Tomcat classloading mechanism, and I can comprehend why
> the
> > default commons-logging API version 1.0.4 that comes with Tomcat has the
> > precedence over the version 1.1.1 that comes with Axis2. My question is
> just
> > this: isn´t there something wrong in this default environment?
> >
> > I notice that even in the Axis2 manual there is a picture that shows the
> > Axis2 Happiness page, where we can see the
> > [CATALINA_HOME]/bin/commons-logging-api-jar as one of the "Essential
> > components", so everybody could think "oh, since even in the Axis2 manual
> > there is such a picture, that´s normal, everything should be correct",
> but I
> > am the exception. I cannot avoid this sensation that there is something
> > wrong, and again, the same question appears in my mind, and it´s been
> > causing troubles in my mind. I can´t even sleep well during the night,
> > because I´ve been always asking myself the same question: isn´t there
> > something wrong in this default environment? I am using Axis2 at my
> company,
> > in a real production environment, so that´s why I am so worried about
> this
> > issue.
> >
> > I tried to replace the [CATALINA_HOME]/bin/commons-logging-api-jar by
> that
> > one that comes with Axis2. I did that renaming the
> > "commons-logging-1.1.1.jar" to "commons-logging-api.jar", and then I put
> > this renamed jar file in the [CATALINA_HOME]/bin/ directory. I know this
> > version of Tomcat hardcoded the name of the jar file in its source code,
> > therefore that´s why we should rename the jar file if we want to use a
> newer
> > version of that API, othewise we are not even able to startup Tomcat. The
> > problem is that, when I did that, the following exception happened during
> > the startup:
> >
> > SEVERE: End event threw exception
> > org.apache.commons.logging.LogConfigurationException: User-specified log
> > class 'org.apache.commons.logging.impl.Log4JLogger' cannot be found or is
> > not useable.
> >
> > And then the axis2 context is not initialized.
> >
> > Isn´t this fact strange? I mean, now I am trying to make, "by brute
> force",
> > the version 1.1.1 of commons-logging available to the Axis2 environment,
> > that is the version that is supposed to work with Axis2, but when I do
> that,
> > the axis2 context is not even being initialized! The Tomcat itself and
> all
> > the rest of its contexts is being initialized, except axis2 context. I am
> > trying to make the correct version of the API available, but it seems
> that
> > Axis2 is not accepting this. Isn´t that strange? Isn´t that
> contradictory?
> >
> > My next try was putting the "commons-logging-1.1.1.jar" file in the
> > [CATALINA_HOME]/common/endorsed/ (without renaming the jar file ), but it
> > was again unsuccessful. The same problem happened, the same exception
> > occurred.
> >
> > Of course, when I comment the line
> >
> "org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger",
> > from the
> > [CATALINA_HOME]/webapps/axis2/WEB-INF/classes/commons-logging.properties,
> > the axis2 context is, at least, initialized. But is it really permitted
> > (commenting that line)? Does Axis2 still work properly when we comment
> that
> > line?
> >
> >
> > Thanks in advance!
> >
>
>
>
> --
> Davanum Srinivas :: http://davanum.wordpress.com
>
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