FD_SOCK ArrayIndexOutOfBoundsException with concurrent stop and message receive

2012-01-11 14:41:13,633 4377 ERROR [org.jgroups.protocols.pbcast.NAKACK] (Incoming-2,infinispan-hibernate-cluster,dhcp-144-239-60991:) couldn't deliver message [dst: <null>, src: dhcp-144-239-44597 (3 headers), size=0 bytes]
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at java.util.ArrayList.addAll(ArrayList.java:475)
at org.jgroups.protocols.FD_SOCK.down(FD_SOCK.java:327)
at org.jgroups.protocols.FD.down(FD.java:283)
at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:77)
at org.jgroups.protocols.pbcast.NAKACK.down(NAKACK.java:528)
at org.jgroups.protocols.UNICAST.down(UNICAST.java:467)
at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:307)
at org.jgroups.protocols.pbcast.GMS.installView(GMS.java:624)
at org.jgroups.protocols.pbcast.ParticipantGmsImpl.handleViewChange(ParticipantGmsImpl.java:152)
at org.jgroups.protocols.pbcast.GMS.up(GMS.java:781)
at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:244)
at org.jgroups.protocols.UNICAST.up(UNICAST.java:332)
at org.jgroups.protocols.pbcast.NAKACK.handleMessage(NAKACK.java:733)
at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:561)
at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:140)
at org.jgroups.protocols.FD.up(FD.java:273)
at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:284)
at org.jgroups.protocols.MERGE2.up(MERGE2.java:205)
at org.jgroups.protocols.Discovery.up(Discovery.java:354)
at org.jgroups.protocols.TP.passMessageUp(TP.java:1174)
at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1709)
at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1686)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
2012-01-11 14:41:13,633 4377 ERROR [org.jgroups.protocols.FD_SOCK] (FD_SOCK pinger,infinispan-hibernate-cluster,dhcp-144-239-60991:) exception
java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.fastRemove(ArrayList.java:441)
at java.util.ArrayList.remove(ArrayList.java:424)
at org.jgroups.protocols.FD_SOCK.run(FD_SOCK.java:418)
at java.lang.Thread.run(Thread.java:680)