Hi Raffaele,

Raffaele Viola wrote:
Hi all,

how can I enable the LOG in xwiki.

Basically xwiki uses log4j as logging facility (http://logging.apache.org/log4j/).
To know how to enable logging take a look at http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Logging

Hope this helps.
-- 
Víctor A. Rodríguez (http://www.bit-man.com.ar)
El bit Fantasma (Bit-Man) - Algorithm junkie
Perl Mongers Capital Federal (http://cafe.pm.org/)
GNU/Linux User Group - FCEyN - UBA (http://glugcen.dc.uba.ar/)