[aspectj-users] ClassFormatError with an abstract Aspect

[Fifre <fifre.news@xxxxxxx>]

Hello,

I have a problem with the execution of my project, the console returns 
me this error :

Exception in thread "main" java.lang.ClassFormatError: Duplicate method 
name&signature in class file fr/irit/etracetool/generic/trace/Tracer

Tracer is an abstract aspect. Its signature is :
public abstract aspect Tracer<TO extends TraceOperation>
in package fr.irit.etracetool.generic.trace.

The aspect concretely woven to my project is EMFTracer, and its 
signature is :
public aspect EMFTracer extends Tracer<EMFTraceOperation>
in package fr.irit.etracetool.emf.trace.

Both aspects compile and my project compiles.
In the aspectPath of my project, i have the fr.irit.etracetool.emf.trace 
project.
In the BuildPath of my project, i have the 
fr.irit.etracetool.generic.trace project.

When i run the project, the error is :

Exception in thread "main" java.lang.ClassFormatError: Duplicate method 
name&signature in class file fr/irit/etracetool/generic/trace/Tracer
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
   at 
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
   at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
   at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
   at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
   at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

Any ideas ?

Thanks,
Bastien.