WeldListener: java.lang.NullPointerException on Received new cluster view

[JBossINF] 19:52:34,258 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.web] (Incoming-4,null) JBAS010267: New cluster view for partition web (id: 1, delta: 1, merge: false) : [perf19/web, perf21/web]
[JBossINF] 19:52:34,259 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-4,null) ISPN000094: Received new cluster view: [perf19/web|1] [perf19/web, perf21/web]
[JBossINF] 19:52:34,259 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.sfsb] (Incoming-9,null) JBAS010267: New cluster view for partition sfsb (id: 1, delta: 1, merge: false) : [perf19/sfsb, perf21/sfsb]
[JBossINF] 19:52:34,261 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-9,null) ISPN000094: Received new cluster view: [perf19/sfsb|1] [perf19/sfsb, perf21/sfsb]
[JBossINF] 19:52:37,024 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.web] (Incoming-19,null) JBAS010267: New cluster view for partition web (id: 2, delta: 1, merge: false) : [perf19/web, perf21/web, perf20/web]
[JBossINF] 19:52:37,025 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-19,null) ISPN000094: Received new cluster view: [perf19/web|2] [perf19/web, perf21/web, perf20/web]
[JBossINF] 19:52:37,032 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.sfsb] (Incoming-7,null) JBAS010267: New cluster view for partition sfsb (id: 2, delta: 1, merge: false) : [perf19/sfsb, perf21/sfsb, perf20/sfsb]
[JBossINF] 19:52:37,033 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-7,null) ISPN000094: Received new cluster view: [perf19/sfsb|2] [perf19/sfsb, perf21/sfsb, perf20/sfsb]
[JBossINF] 19:52:39,825 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.web] (Incoming-15,null) JBAS010267: New cluster view for partition web (id: 3, delta: 1, merge: false) : [perf19/web, perf21/web, perf20/web, perf18/web]
[JBossINF] 19:52:39,826 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-15,null) ISPN000094: Received new cluster view: [perf19/web|3] [perf19/web, perf21/web, perf20/web, perf18/web]
[JBossINF] 19:52:39,828 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.sfsb] (Incoming-2,null) JBAS010267: New cluster view for partition sfsb (id: 3, delta: 1, merge: false) : [perf19/sfsb, perf21/sfsb, perf20/sfsb, perf18/sfsb]
[JBossINF] 19:52:39,828 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-2,null) ISPN000094: Received new cluster view: [perf19/sfsb|3] [perf19/sfsb, perf21/sfsb, perf20/sfsb, perf18/sfsb]
[JBossINF] 19:54:48,134 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.web] (VERIFY_SUSPECT.TimerThread,web,perf19/web) JBAS010274: Suspected member: perf18/web
[JBossINF] 19:54:48,134 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.sfsb] (VERIFY_SUSPECT.TimerThread,sfsb,perf19/sfsb) JBAS010274: Suspected member: perf18/sfsb
[JBossINF] 19:54:48,187 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.sfsb] (Incoming-14,null) JBAS010267: New cluster view for partition sfsb (id: 4, delta: -1, merge: false) : [perf19/sfsb, perf21/sfsb, perf20/sfsb]
[JBossINF] 19:54:48,187 INFO  [org.jboss.as.clustering.CoreGroupCommunicationService.lifecycle.web] (Incoming-13,null) JBAS010267: New cluster view for partition web (id: 4, delta: -1, merge: false) : [perf19/web, perf21/web, perf20/web]
[JBossINF] 19:54:48,188 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-14,null) ISPN000094: Received new cluster view: [perf19/sfsb|4] [perf19/sfsb, perf21/sfsb, perf20/sfsb]
[JBossINF] 19:54:48,188 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (Incoming-13,null) ISPN000094: Received new cluster view: [perf19/web|4] [perf19/web, perf21/web, perf20/web]
[JBossINF] 19:54:48,187 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host]] (ajp-perf19-10.16.90.56-8009-1) Exception sending request initialized lifecycle event to listener instance of class org.jboss.weld.servlet.WeldListener: java.lang.NullPointerException
[JBossINF] 	at org.jboss.as.clustering.lock.AbstractClusterLockSupport.lock(AbstractClusterLockSupport.java:157)
[JBossINF] 	at org.jboss.as.clustering.lock.SharedLocalYieldingClusterLockManager.lock(SharedLocalYieldingClusterLockManager.java:436)
[JBossINF] 	at org.jboss.as.clustering.web.infinispan.DistributedCacheManager.acquireSessionOwnership(DistributedCacheManager.java:436)
[JBossINF] 	at org.jboss.as.web.session.ClusteredSession.acquireSessionOwnership(ClusteredSession.java:521) [jboss-as-web-7.1.0.CR1-SNAPSHOT.jar:]
[JBossINF] 	at org.jboss.as.web.session.ClusteredSession.access(ClusteredSession.java:497) [jboss-as-web-7.1.0.CR1-SNAPSHOT.jar:]
[JBossINF] 	at org.apache.catalina.connector.Request.doGetSession(Request.java:2625) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.catalina.connector.Request.getSession(Request.java:2375) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:841) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.jboss.weld.context.beanstore.http.LazySessionBeanStore.getSession(LazySessionBeanStore.java:72) [weld-core-1.1.4.Final.jar:]
[JBossINF] 	at org.jboss.weld.context.beanstore.http.LazySessionBeanStore.<init>(LazySessionBeanStore.java:58) [weld-core-1.1.4.Final.jar:]
[JBossINF] 	at org.jboss.weld.context.http.HttpSessionContextImpl.associate(HttpSessionContextImpl.java:31) [weld-core-1.1.4.Final.jar:]
[JBossINF] 	at org.jboss.weld.context.http.HttpSessionContextImpl.associate(HttpSessionContextImpl.java:16) [weld-core-1.1.4.Final.jar:]
[JBossINF] 	at org.jboss.weld.servlet.WeldListener.requestInitialized(WeldListener.java:134) [weld-core-1.1.4.Final.jar:]
[JBossINF] 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.5.Final.jar:]
[JBossINF] 	at java.lang.Thread.run(Thread.java:662) [:1.6.0_29]