Weblogic 6.0 sp2: War deployment not working !!

Question

Hi,
I'm using weblogic 6.0 sp2, and it seems as though the war deployment is not
working. My war consists of jsps, images, and under the WEB-INF/classes
directory, Struts classes (i.e. Form and Action classes). When I try to run
a jsp, i get the following error :
<Jul 30, 2001 11:48:10 AM PDT> <Error> <HTTP>
<[WebAppServletContext(4655498,ati
nera)] Root cause of ServletException
javax.servlet.jsp.JspException: Exception creating bean of class
com.atinera.log
in.web.LoginForm: java.lang.ClassNotFoundException:
com.atinera.login.web.LoginF
orm
But if you look in the war, that class is in there.
What gives ?
Thanks,
Jamie

Answer 1

That's right - ActionServlet does Class.forName(actionClass) to load action
class, and this uses ClassLoader which loaded the current class (ActionServlet)
ClassLoaders always delegate to their parent before attempting to load
the class themselves, so it wasn't working until you moved struts.jar to your
WEB-INF/lib.
BTW, Struts doc mentions this problem:
lib/struts.jar - This JAR file contains all of the Java classes included
in Struts. It should be copied into the WEB-INF/lib directory of your web
application. WARNING - If you are going to be hosting multiple Struts based
applications on the same servlet container, you will be tempted to place the
struts.jar file into the shared repository supported by your container. Be
advised that this will like cause you to encounter ClassNotFoundException
problems unless all of your application classes are stored in the shared
repository.
Jamie Tsao <[email protected]> wrote:
So I found the solution to this problem, but it doesn't really make sense to
me.
I originally had struts.jar outside of the WAR file, but in my CLASSPATH.
Weblogic was able to load Strut's ActionServlet (controller), but when the
ActionServlet was looking for the LoginForm (which was inside the WAR), it
couldn't find it.
I solved the problem by putting struts.jar inside the WAR (under
WEB-INF/lib) instead that other directory. Now it works cause apparently
ActionServlet is now in the same classloader as LoginForm, the classloader
which loaded the WAR.
I'm confused because original way should have worked since the classloader
that loaded struts.jar from outside the war is the parent classloader for
the classloader that loaded the WAR. did that make any sense ?
anyone know why ?
thanks,
jamie
"Jamie Tsao" <[email protected]> wrote in message
news:[email protected]...
Hi,
I'm using weblogic 6.0 sp2, and it seems as though the war deployment isnot
working. My war consists of jsps, images, and under the WEB-INF/classes
directory, Struts classes (i.e. Form and Action classes). When I try torun
a jsp, i get the following error :
<Jul 30, 2001 11:48:10 AM PDT> <Error> <HTTP>
<[WebAppServletContext(4655498,ati
nera)] Root cause of ServletException
javax.servlet.jsp.JspException: Exception creating bean of class
com.atinera.log
in.web.LoginForm: java.lang.ClassNotFoundException:
com.atinera.login.web.LoginF
orm
But if you look in the war, that class is in there.
What gives ?
Thanks,
Jamie
Dimitri