I manage to launch xwiki 7.0.1 because I fixed my server.xml but I still have 2016-08-31 14:20:45,440 [xwiki-dev.dom.cp2i.i2-startStop-1] ERROR o.i.j.JmxUtil - ISPN000034: There's already an cache manager instance registered under 'org.xwiki.infinispan' JMX domain. If you want to allow multiple instances configured with same JMX domain enable 'allowDuplicateDomains' attribute in 'globalJmxStatistics' config element but only once! By the way I have this error too: 31-Aug-2016 14:21:57.241 SEVERE [https://xwiki-dev.dom.xxx/xwiki/bin/webjars/resources/path?value=requirejs%…] org.apache.catalina.core.StandardWrapperValve.invoke "Servlet.service()" pour la servlet action a généré une exception java.lang.NullPointerException require.min.js have wrong URL (under xwiki but my xwiki is on the root of my web server and I have webapps/xwiki/WEB-INF/xwiki.cfg with this #-# The name of the webapp to use in the generated URLs. If not specified, the value is extracted from the request URL #-# and thus it's generally not required to set it. However if you're deploying XWiki as root in your Servlet Container #-# and you're using XWiki >= 6.1 and < 7.0 you must set it to an empty value as otherwise the code cannot guess it. #-# For example: # xwiki.webapppath=xwiki xwiki.webapppath= Thxs. -------------------------------------------- En date de : Mar 30.8.16, Pascal BASTIEN &lt;pbasnews-xwiki(a)yahoo.fr&gt; a écrit : Objet: Fw : Re: [xwiki-users] Fw : Re: Could not use Java8 with xwiki on 7.0.1 (and 8.2.1) À: "Thomas Mortagne" &lt;thomas.mortagne(a)xwiki.com&gt;om>, "XWiki Users" &lt;users(a)xwiki.org&gt; Date: Mardi 30 août 2016, 11h35 --- En date de : Mar 30.8.16, Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt; a écrit : with xwiki on 7.0.1 (and 8.2.1) "XWiki Users" &lt;users(a)xwiki.org&gt; No I launch only one xwiki with this JVM. On same server there are another xwiki 6 but with another tomcat and another JVM (/opt/jdk1.8.0_66). I use /opt/jre1.8.0_102