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From "Telmo Costa" <>
Subject About OGNL multi-threading contention
Date Thu, 24 Apr 2008 14:00:15 GMT


We've been testing an application in a production environment and found a
serious contention problem when the number of simultaneous requests grows.
The problem seems to be related with the use of static synchronized blocks
in OGNL code.


I've found a related issue in OGNL
( that is already fixed in
version 2.7.2. But, another related issue
( is still open, although it
already has a patch.


Does anyone know when Struts2 team is upgrading the OGNL version? Currently
struts2 uses OGNL version 2.6.10. 


This is a very important issue for my project, as it receives millions of
requests per day.




Telmo Costa


EF - Tecnologias de Software, S.A.


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