From: <glassfish_at_javadesktop.org>
Date: Tue, 31 Aug 2010 12:00:54 PDT

To solve my problem, I used:

c:\glassfish\imq\bin> imqcmd update dst -n MyQueue -t q -o "consumerFlowLimit=1"

Reference: http://docs.sun.com/app/docs/doc/821-1794/gbnuj?l=en&q=Java+Persistence+API&a=view -> Destination Management.
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