> From: Ivan Rubin Ayma [mailto:[EMAIL PROTECTED]]
> 
> Vadim,
> 
> It helps me a lot. But I'm still a wandering rock! And keep on walking
> as follows:
> 
> I instanciated my class outside cocoon, in the same project (same
> parameters to the VM), and checked for instance of Component and it's
> ok, it's an instance of:
> 
> org.apache.avalon.framework.component.Component

This explains everything. Yes, it is instance of *this* particular
instance of the Component class, but *not* the instance of the Component
class loaded by Cocoon. You have got *two* instances of the Component
class. Avoid instantiating of the action outside of Cocoon, or do it
using Cocoon's class loader. Any of these two should help.


> On my sitemap, if I replace my action for, for example,
> org.apache.cocoon.acting.HelloAction, sitemap compilation goes ok.
> 
> So the problem should be my environment, which is not the best, but is
> simple.
> I'm using JBuilder to run Tomcat and Cocoon with jars.
> I've included on the project all the tomcat jars and the
> web-apps/cocoon/WEB-INF/lib/*.jar, where the avalon framework is
> located.
> 
> I think the compilation of my component can't be the cause. I'm
> compiling it with JBuilder's compiler.
> 
> More than one Component class? from where? I'm just using tomcat 4
jars
> and cocoon 2 jars...
> 
> Different ClassLoaders? I don't quietly understand that, doesn't
Cocoon
> use the Java ClassLoader of the virtual machine running it?

Java might have more then one *instance* of class loader. Even *same*
class file loaded by two different instances of the class loader is
*different*.

Try System.getIdentityHashcode() on your Component.getClass() and
Cocoon's Component.getClass() - this will be two *different* classes.

> I see a
> components.classloader package in cocoon, that's the class loader it
> uses? Can the cause be that that classloader is not compatible with
the
> class loader of the virtual machine (JBuilder's VM) running it?

No.

Vadim

> 
> Thanks,
> 
> -----Mensaje original-----
> De: Vadim Gritsenko [mailto:[EMAIL PROTECTED]]
> Enviado el: martes, 29 de enero de 2002 11:16
> Para: [EMAIL PROTECTED]
> Asunto: RE: Object X is not a component error
> 
> 
> This exception is thrown when your object does not implement Component
> interface:
>  if (!(jSessionLogin instanceof Component)) throw
> IllegalAccessException();
> 
> Usually this happens when your component does not implement (IIRC)
> org.apache.avalon.component.Component. Also it happens when you have
> *more* then one class Component loaded by Java due to use of different
> ClassLoadrers and/or several class files for the same Component class.
> 
> I'm not sure that this could help you, but I don't know what's going
> wrong on your system and can't suggest you anything right now.
> 
> Vadim
> 
> > -----Original Message-----
> > From: Ivan Rubin Ayma [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, January 29, 2002 9:06 AM
> > To: [EMAIL PROTECTED]
> > Subject: Object X is not a component error
> >
> > I tried to put the component in the package org.apache.cocoon.acting
> > wondering what IllegalAccessException could be, but nothing.
> >
> > I'm posting the complete java source, subsitemap and the cocoon
error.
> >
> > Thanks,
> >
> > -----Mensaje original-----
> > De: Ivan Rubin Ayma
> > Enviado el: lunes, 28 de enero de 2002 18:05
> > Para: [EMAIL PROTECTED]
> > Asunto: Object X is not a component error
> >
> >
> > I wrote the simplest component I could and at sitemap-compilation
> cocoon
> > keeps on giving me:
> >
> > Error in sitemap configuration : Object
Zeus.core.cocoon.JSessionLogin
> > is not a Component
> >
> > Why?
> >
> > The component:
> >
> > public class JSessionLogin extends
> > org.apache.cocoon.acting.ComposerAction implements ThreadSafe {
> >
> >     public Map act( Redirector redirector, SourceResolver resolver,
> > Map objectModel, String source, Parameters par )
> >               throws Exception {
> >
> >             return null;
> >     }
> > }
> >
> > It's well compiled and in the right place.
> >
> > Any hints?
> >
> > Thanks,
> >
> > -----Mensaje original-----
> > De: Vadim Gritsenko [mailto:[EMAIL PROTECTED]]
> > Enviado el: lunes, 28 de enero de 2002 13:51
> > Para: [EMAIL PROTECTED]
> > Asunto: RE: one of those "The sitemap handler's sitemap is not
> > available" errors
> >
> >
> > > From: tom blondeau [mailto:[EMAIL PROTECTED]]
> > >
> > > btw. what's the problem with hsqldb. it only works fine if i
> overwrite
> > the
> > > files in the WEB-INF/db with the original files everytime i
restart
> > the
> > > servlet engine?
> >
> >
> > Try ServerImpl from the CVS. Should work Ok now.
> >
> > Vadim
> >
> >
> >
> >
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> 
> 
> 
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