From: <glassfish_at_javadesktop.org>
Date: Tue, 11 Nov 2008 16:08:29 PST
may be my browser doesn't display your example correctly, but if you call em.lock() in tx1 *after* tx2 has committed, nothing will change. Look at the slides 36-43 from this JavaONE presentation: http://developers.sun.com/learning/javaoneonline/2007/pdf/TS-4902.pdf to understand how the locks are expected to work.
Regards,
-marina
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