Race condition in parallel boot

I observed the following exception in app client boot. As ArrayDeque should never throw ArrayIndexOutOfBoundsException I would assume that it is being accessed by multiple threads at once.

10:27:09,133 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool – 24) JBAS014612: Operation ("add") failed - address: ([
("subsystem" => "messaging"),
("hornetq-server" => "default"),
("jms-queue" => "ejb_ee_deploy_mdb_ejblink_singleT_ReplyQueue")
]): java.lang.ArrayIndexOutOfBoundsException: 66
at java.util.ArrayDeque.addLast(ArrayDeque.java:216) [:1.6.0_29]
at org.jboss.as.controller.AbstractOperationContext.addStep(AbstractOperationContext.java:138) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.addStep(AbstractOperationContext.java:105) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.ParallelBootOperationContext.addStep(ParallelBootOperationContext.java:95) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.ParallelBootOperationContext.addStep(ParallelBootOperationContext.java:66) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractAddStepHandler$1.execute(AbstractAddStepHandler.java:53) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:321) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:216) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:152) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.messaging.SecurityRoleAdd$1.execute(SecurityRoleAdd.java:101) [jboss-as-messaging-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:321) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:216) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:152) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.messaging.TransportConfigOperationHandlers$4.execute(TransportConfigOperationHandlers.java:165) [jboss-as-messaging-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:321) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:216) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:152) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.messaging.TransportConfigOperationHandlers$4.execute(TransportConfigOperationHandlers.java:165) [jboss-as-messaging-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:321) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:216) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:152) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.messaging.HornetQServerAdd$1.execute(HornetQServerAdd.java:177) [jboss-as-messaging-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:321) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:216) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:152) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at org.jboss.as.controller.ParallelBootOperationStepHandler$ParallelBootTask.run(ParallelBootOperationStepHandler.java:309) [jboss-as-controller-7.1.0.CR1-SNAPSHOT.jar:]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_29]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_29]
at java.lang.Thread.run(Thread.java:662) [:1.6.0_29]
at org.jboss.threads.JBossThread.run(JBossThread.java:122)