The error seems to be "La fonction
org.postgresql.jdbc4.Jdbc4Connection.isValid(int) n'est pas encore
implémentée.". That would mean the postgres connector you have on this
system is too old for XWiki.
 You can check the version of the jdbc4 connector by looking at
/usr/share/java/postgresql-jdbc4*.jar.
I seems to work well for me with 9.2-1004 and I think I remember some
issues with lower version variant of 9.2 and 100% sure it does not
work with version lower than 9.2.
On Fri, Jun 19, 2015 at 1:09 PM, Stéphane LASSIRE
<slassire(a)cesap.asso.fr> wrote:
  Hello THomas,
 THanks for your help.
 the log file is very big, I  put the head of each mother exception but
 before (it sounds at the end that SQL was part f the problem) I test
 postgres and it run fine.
 > control of Postgres 
postgres@CESAP-WIKI01:/var/log/tomcat7$ psql -l
                                   List of databases
    Name    |  Owner   | Encoding |   Collate   |    Ctype    |   Access
 privileges
 -----------+----------+----------+-------------+-------------+-----------------------
  postgres  | postgres | UTF8     | fr_FR.UTF-8 | fr_FR.UTF-8 |
  template0 | postgres | UTF8     | fr_FR.UTF-8 | fr_FR.UTF-8 | =c/postgres
          +
            |          |          |             |             |
 postgres=CTc/postgres
  template1 | postgres | UTF8     | fr_FR.UTF-8 | fr_FR.UTF-8 | =c/postgres
          +
            |          |          |             |             |
 postgres=CTc/postgres
  test      | postgres | UTF8     | fr_FR.UTF-8 | fr_FR.UTF-8 |
  xwiki     | postgres | UTF8     | fr_FR.UTF-8 | fr_FR.UTF-8 |
 (5 rows)
 > Catalina log 
 exception
 javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number
 11007 in 0: Failed to extract Entity Resource Reference from URL
 [
http://wiki.cesap.asso.fr:8080/xwiki/bin/view/Main/]
 cause mère
 com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract
 Entity Resource Reference from URL
 [
http://wiki.cesap.asso.fr:8080/xwiki/bin/view/Main/]
 cause mère
 java.lang.RuntimeException: Failed to located wiki descriptor for alias
 [wiki.cesap.asso.fr]
 cause mère
 org.xwiki.wiki.manager.WikiManagerException: Failed to locate
 XWiki.XWikiServerClass document for wiki alias [wiki.cesap.asso.fr]
 cause mère
 org.xwiki.query.QueryException: Exception while translating [where
 doc.object(XWiki.XWikiServerClass).server = :wikiAlias and doc.name like
 'XWikiServer%'] XWQL query to the [hql] language. Query statement = [where
 doc.object(XWiki.XWikiServerClass).server = :wikiAlias and doc.name like
 'XWikiServer%']
 cause mère
 com.xpn.xwiki.XWikiException: Error number 3202 in 3: Exception while
 reading document [xwiki:XWiki.XWikiServerClass]
 cause mère
 org.hibernate.HibernateException: Could not create a DBCP pool. There is
 an error in the Hibernate configuration file, please review it.
 cause mère
 java.sql.SQLException: Cannot create PoolableConnectionFactory (La
 fonction org.postgresql.jdbc4.Jdbc4Connection.isValid(int) n'est pas
 encore implémentée.)
 cause mère
 java.sql.SQLFeatureNotSupportedException: La fonction
 org.postgresql.jdbc4.Jdbc4Connection.isValid(int) n'est pas encore
 implémentée.
 Cordialement
 Stéphane Lassire
 Chargé de l'informatique et de la communication
 Tél direct : 01 42 85 81 87
 Courriel : slassire(a)cesap.asso.fr
 Ce courrier est adressé uniquement à son destinataire et contient des informations
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