I deploy a vaadin-cdi application in Wildfly and i found the next error stack trace...

19:55:22,516 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-3) MSC000001: Failed to start service jboss.deployment.unit."login-vaadin.war".component."uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet".WeldInstantiator: org.jboss.msc.service.StartException in service jboss.deployment.unit."login-vaadin.war".component."uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet".WeldInstantiator: Failed to start service

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1978)

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

  at java.lang.Thread.run(Thread.java:748)

Caused by: org.jboss.weld.resources.spi.ResourceLoadingException: Error while loading class uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet

  at org.jboss.weld.resources.ClassTransformer.getBackedAnnotatedType(ClassTransformer.java:184)

  at org.jboss.weld.resources.ClassTransformer.getBackedAnnotatedType(ClassTransformer.java:192)

  at org.jboss.weld.resources.ClassTransformer.getEnhancedAnnotatedType(ClassTransformer.java:230)

  at org.jboss.as.weld.injection.InjectionTargets.createInjectionTarget(InjectionTargets.java:60)

  at org.jboss.as.weld.injection.WeldComponentService.start(WeldComponentService.java:120)

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:2032)

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1955)

  ... 3 more

Caused by: java.lang.IncompatibleClassChangeError: uoc.jdelgadot.login_vaadin.MyUI and uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet disagree on InnerClasses attribute

  at java.lang.Class.getDeclaringClass0(Native Method)

  at java.lang.Class.getDeclaringClass(Class.java:1235)

  at java.lang.Class.getEnclosingClass(Class.java:1277)

  at java.lang.Class.getSimpleBinaryName(Class.java:1443)

  at java.lang.Class.isMemberClass(Class.java:1433)

  at org.jboss.weld.util.reflection.Reflections.getNesting(Reflections.java:138)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedConstructor.initParameters(BackedAnnotatedConstructor.java:50)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedConstructor.initParameters(BackedAnnotatedConstructor.java:28)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedCallable.<init>(BackedAnnotatedCallable.java:34)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedConstructor.<init>(BackedAnnotatedConstructor.java:38)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedConstructor.of(BackedAnnotatedConstructor.java:32)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType$BackedAnnotatedConstructors.computeValue(BackedAnnotatedType.java:168)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType$BackedAnnotatedConstructors.computeValue(BackedAnnotatedType.java:161)

  at org.jboss.weld.util.LazyValueHolder.get(LazyValueHolder.java:49)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType$EagerlyInitializedLazyValueHolder.<init>(BackedAnnotatedType.java:157)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType$BackedAnnotatedConstructors.<init>(BackedAnnotatedType.java:161)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType$BackedAnnotatedConstructors.<init>(BackedAnnotatedType.java:161)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType.<init>(BackedAnnotatedType.java:62)

  at org.jboss.weld.annotated.slim.backed.BackedAnnotatedType.of(BackedAnnotatedType.java:46)

  at org.jboss.weld.resources.ClassTransformer$TransformClassToBackedAnnotatedType.apply(ClassTransformer.java:80)

  at org.jboss.weld.resources.ClassTransformer$TransformClassToBackedAnnotatedType.apply(ClassTransformer.java:77)

  at org.jboss.weld.util.cache.ReentrantMapBackedComputingCache$1.apply(ReentrantMapBackedComputingCache.java:55)

  at org.jboss.weld.util.cache.ReentrantMapBackedComputingCache$1.apply(ReentrantMapBackedComputingCache.java:51)

  at org.jboss.weld.util.cache.ReentrantMapBackedComputingCache.getValue(ReentrantMapBackedComputingCache.java:64)

  at org.jboss.weld.util.cache.ReentrantMapBackedComputingCache.getCastValue(ReentrantMapBackedComputingCache.java:80)

  at org.jboss.weld.resources.ClassTransformer.getBackedAnnotatedType(ClassTransformer.java:175)

  ... 9 more

19:55:22,957 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 2) WFLYCTL0013: Operation ("add") failed - address: ([("deployment" => "login-vaadin.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"login-vaadin.war\".component.\"uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet\".WeldInstantiator" => "Failed to start service

    Caused by: org.jboss.weld.resources.spi.ResourceLoadingException: Error while loading class uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet

    Caused by: java.lang.IncompatibleClassChangeError: uoc.jdelgadot.login_vaadin.MyUI and uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet disagree on InnerClasses attribute"}}

19:55:22,959 ERROR [org.jboss.as.server] (management-handler-thread - 2) WFLYSRV0021: Deploy of deployment "login-vaadin.war" was rolled back with the following failure message:

{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"login-vaadin.war\".component.\"uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet\".WeldInstantiator" => "Failed to start service

    Caused by: org.jboss.weld.resources.spi.ResourceLoadingException: Error while loading class uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet

    Caused by: java.lang.IncompatibleClassChangeError: uoc.jdelgadot.login_vaadin.MyUI and uoc.jdelgadot.login_vaadin.MyUI$MyUIServlet disagree on InnerClasses attribute"}}

Any reason?