NoClassDefFoundError AnnotationProcessorFactory

I'm trying to compute webservices.

Reading documentation I found that I have to use <apt> ant task to create artifacts and war.

I currently use jdk1.5 with Jboss and jaxwx2.0 of glassfish.

I got this error :

An exception has occurred in apt (1.6.0).....

java.lang.NoClassDefFoundError: com/sun/mirror/apt/AnnotationProcessorFactory

...

Can somebody tell me what to do ?

[425 byte] By [ydriuttia] at [2007-11-27 5:23:58]