This is a known problem in 840. Some stats are wrong because of this.
You can get rid of this message by disabling stats in xwiki.cfg
You can leave it like that if you ignore the error (you could modify
log4j.properties to get rid of it too)
Ludovic
Enrique Ferreyra a écrit :
  Is this a performance issue, i cant try things from
the svn in a easy
 way, my xwiki implementation is now under production environment.
 Thankss
 Robin Fernandes escribió:
  I don't think you need to worry, see:
 
http://mail-archive.objectweb.org/xwiki-dev/2005-08/msg00011.html
 You can probably avoid it by grabbing the stats module from SVN.
 On 11/04/06, Enrique Ferreyra <eferreyra(a)gmail.com> wrote:
  I get this exception all the time:
 14:30:54,578 ERROR http-8080-Processor25
 
http://localhost:8080/xwiki/bin/view/Main/WebHome
 AssertionFailure:<init>:22 - an assertion failure occured (this may
 indicate a bug in Hibernate, but is more likely due to unsafe use of
 the
 session)
 org.hibernate.AssertionFailure: possible nonthreadsafe access to
 session
 I should worry ? can i avoid that ?
 --
  A.U.S. Enrique Ferreyra
    Centro de Cómputos
 Red Megatone - Red Confina
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