I just tried JBoss AS 7.1.1 with Weld 2.0.0.Beta3 and Weld 2.0.0.Beta6, JBoss EAP 6.1 Alpha 1 with Weld 2.0.0.Beta6 and I have encountered the following issue when deploying a small sample application:
20:55:52,495 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-14) MSC00001: Failed to start service jboss.deployment.unit."Foodeys.war".WeldService: org.jboss.msc.service.StartException in service jboss.deployment.unit."Foodeys.war".WeldService: org.jboss.weld.exceptions.DeploymentException: WELD-001414 Bean name is ambiguous. Name csfFLOWDISCOVERYCDIHELPER resolves to beans [Managed Bean [class com.sun.faces.flow.FlowDiscoveryCDIHelper] with qualifiers [@Default @Named @Any], Managed Bean [class com.sun.faces.flow.FlowDiscoveryCDIHelper] with qualifiers [@Default @Named @Any]]
at org.jboss.as.weld.services.WeldService.start(WeldService.java:84)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_15]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_15]
at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_15]
Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001414 Bean name is ambiguous. Name csfFLOWDISCOVERYCDIHELPER resolves to beans [Managed Bean [class com.sun.faces.flow.FlowDiscoveryCDIHelper] with qualifiers [@Default @Named @Any], Managed Bean [class com.sun.faces.flow.FlowDiscoveryCDIHelper] with qualifiers [@Default @Named @Any]]
at org.jboss.weld.bootstrap.ConcurrentValidator$5.doWork(ConcurrentValidator.java:133)
at org.jboss.weld.bootstrap.ConcurrentValidator$5.doWork(ConcurrentValidator.java:129)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:60)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:53)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_15]
at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_15]
... 3 more