The reason they don't load the classes where ever they may be found is
because different web apps may be using different
versions of the API. This could provide inconsistencies that could
cause applications to fail unexpectedly, or cause errors
more abstract than most developers would want to deal with.
On top of that some APIs belong to the application server instead of the
webapp and a separation between web app libraries
and server libraries is very necessary. Tomcat isn't the only
application container that would give this error either, try it using
Jetty or some other app server. The specs were designed by very
intelligent people(in most cases) and things are done certain
ways for a reason.
Anyway, I hope I don't sound like a jerk. These are some things that
the spec or the documentation might not specify that could
use some explaining, so I figured an explanation might not hurt. I hope
that I was able to help someone with this information.
Zack
Anoop kumar V wrote:
Yes - the documentation does help. But I think Tomcat is a bit too
strict
in applying the specs - or maybe the specs are too rigid. Why not load
classes wherever they are found!!
Anyways - The delivery of the environment was today and as soon as I
deleted
the j2ee.jar from the webapp/<app>/WEB-INF/lib everything seemed to work
just fine.
I cannot pull the jar out - because this is a product implementation
and we
need to provide one big war to the deployment team...
Thanks so much,
Anoop
On 1/23/07, Mark Thomas <[EMAIL PROTECTED]> wrote:
Jacob Rhoden wrote:
> You raise a question I have been wondering about for quite some time,
> why is it that some libraries need to go in different places, I
tend to
> just copy them to different places until it works (: How does one
learn
> these things?
Reading the documentation is usually a good place to start.
http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html
Mark
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