el 2.2

hi all

For my JSF 2.0 application, I need to switch to Expression Language 2.2 
to be able to use parametrized actions.
Does anyone knows how to do this on a Jonas 5.1.2 server ? I have tried 
dropping juel-impl-2.2.1.jar and juel-spi-2.2.1.jar in the WEB-INF/lib 
but they were not used

Thanks for any help

Best

begin:vcard
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url:http://www-prima.inrialpes.fr
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