JAXB sous Eclipse?

Bonjour,

j'ai essayé de Créer et configurer une tâche d'exécution pour JAXB sur eclipse
mais j'ai ce message d'erreur des idées????

parsing a schema...
compiling a schema...
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.commons.launcher.ChildMain.run(ChildMain.java:269)
Caused by: java.lang.IllegalArgumentException: Expected class javax.xml.bind.annotation.XmlAccessType but found class javax.xml.bind.annotation.AccessType
at com.sun.codemodel.TypedAnnotationWriter.checkType(TypedAnnotationWriter.java:187)
at com.sun.codemodel.TypedAnnotationWriter.invoke(TypedAnnotationWriter.java:101)
at $Proxy1.value(Unknown Source)
at com.sun.tools.xjc.generator.bean.ImplStructureStrategy$1.createClasses(ImplStructureStrategy.java:46)
at com.sun.tools.xjc.generator.bean.BeanGenerator.generateClassDef(BeanGenerator.java:371)
at com.sun.tools.xjc.generator.bean.BeanGenerator.getClazz(BeanGenerator.java:403)
at com.sun.tools.xjc.generator.bean.BeanGenerator.<init>(BeanGenerator.java:178)
at com.sun.tools.xjc.generator.bean.BeanGenerator.generate(BeanGenerator.java:151)
at com.sun.tools.xjc.model.Model.generateCode(Model.java:228)
at com.sun.tools.xjc.Driver.run(Driver.java:293)
at com.sun.tools.xjc.Driver.run(Driver.java:170)
at com.sun.tools.xjc.Driver._main(Driver.java:95)
at com.sun.tools.xjc.Driver.access$000(Driver.java:53)
at com.sun.tools.xjc.Driver$1.run(Driver.java:75)