[ openjms-Bugs-984891 ] ConcurrentModificationException on server shutdown

Bugs item #984891, was opened at 2004-07-04 22:33
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=474136&aid=984891&group_id=54559

Category: transport
Group: v0.7.6.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Tim Anderson (tanderson)
Assigned to: Tim Anderson (tanderson)
Summary: ConcurrentModificationException on server shutdown

Initial Comment:
(Originally from 
http://article.gmane.org/gmane.comp.java.openjms.devel
/616)

Hello,

I sporadically get a 
java.util.ConcurrentModificationException on the 
client side when i shut down the openjms server. This is 
annoying 
because my ExceptionListener won't get called and this 
in turn prevents 
my failover to be triggered. I'm using openjms-0.7.6.1.

2004-05-19 12:12:53,473 [MultiplexConnection-
XXX.XXX.XXX.XXX:36342] 
DEBUG org.exolab.core.mipc.Demultiplexer - 
Demultiplexer terminating on exception
java.io.EOFException
         at java.io.DataInputStream.readInt
(DataInputStream.java:397)
         at 
org.exolab.core.mipc.MessageInputStream.receive
(MessageInputStream.java:95)
         at org.exolab.core.mipc.Demultiplexer.run
(Demultiplexer.java:153)
         at 
org.exolab.core.mipc.MultiplexConnection.run
(MultiplexConnection.java:240)
2004-05-19 12:12:53,478 [MultiplexConnection-
XXX.XXX.XXX.XXX:36342] 
DEBUG org.exolab.core.mipc.MultiplexConnection - 
MultiplexConnection 
terminating on exception
java.util.ConcurrentModificationException
         at java.util.Hashtable$Enumerator.next
(Hashtable.java:976)
         at org.exolab.core.mipc.Demultiplexer.run
(Demultiplexer.java:172)
         at 
org.exolab.core.mipc.MultiplexConnection.run
(MultiplexConnection.java:240)

I had a look at org.exolab.core.mipc.Demultiplexer and 
after adding a 
bit of synchronisation it worked fine.

Regards
Andre Gebers

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