Your right, the problem was the use of abstract class.
Thank a lot for your help.


[EMAIL PROTECTED] wrote:
I googled a bit ...

You said you have [1] a taskdef
   <taskdef name="emfGen" 
classname="org.eclipse.emf.ant.taskdefs.codegen.ecore.GeneratorTask"
But this is an abstract class [2]. Maybe try org.eclipse.emf.importer.ecore.taskdefs.EcoreGeneratorTask instead [3].



Jan


[1] http://marc.theaimsgroup.com/?l=ant-user&m=116192063731748&w=2
[2] 
http://download.eclipse.org/tools/emf/2.2.1/javadoc/org/eclipse/emf/ant/taskdefs/codegen/ecore/GeneratorTask.html
[3] 
http://download.eclipse.org/tools/emf/2.2.1/javadoc/org/eclipse/emf/importer/ecore/taskdefs/EcoreGeneratorTask.html



-----Ursprüngliche Nachricht-----
Von: Dominique Devienne [mailto:[EMAIL PROTECTED] Gesendet: Sonntag, 29. Oktober 2006 01:12
An: Ant Users List
Betreff: Re: Problem creating a task to generate java from an EMF model

On 10/27/06, anne robert <[EMAIL PROTECTED]> wrote:

here is the debug trace

It appears that the class is loaded OK, yet you get an exception when Ant calls the constructor for the task. Sorry, but I don't know why.
Are you sure this is a valid task? --DD

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