New subject: [xwiki-users] users Digest, Vol 109, Issue 11

5 Aug 2016

Hello everyone , actually I wanted to know , what all are the programming
languages that would be beneficial for GSoC . I will be taking part in GSoC
next year and I have pretty good hands in java . So I just wanted your
advice regarding that as I am new to this group

On Thu, Aug 4, 2016 at 8:11 PM, &lt;users-request(a)xwiki.org&gt; wrote:

...
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 Today's Topics:

    1. [myxwiki] XWiki Enterprise 8.2.1 Upgrade (Thomas Mortagne)
    2. Re: Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException
       (St?phane LASSIRE)
    3. Re: Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException
       (Thomas Mortagne)
    4. How to create a link to a page translation? (Hofst?tter Mario)
    5. [ANN] Contrib Parent pom 6.4-3 (Thomas Mortagne)

 ----------------------------------------------------------------------

 Message: 1
 Date: Thu, 4 Aug 2016 12:14:46 +0200
 From: Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt;
 To: XWiki Users &lt;users(a)xwiki.org&gt;rg>, XWiki Developers &lt;devs(a)xwiki.org&gt;
 Subject: [xwiki-users] [myxwiki] XWiki Enterprise 8.2.1 Upgrade
 Message-ID:
         <CAPnKnLGTst4CHWB6PMND-o5zOFYWemiybG6Ns7pnjZx_ej68pA@
 mail.gmail.com>
 Content-Type: text/plain; charset=UTF-8

 Hi everyone,

 myxwiki.org has been upgraded to XE 8.2.1. If you own a wiki hosted
 there you should have a look at the release notes for this version at:
 http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/

 You should automatically get an upgrade wizard for your wiki when you
 login as admin.
 For more details see the upgrade guide available at :
 http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Upgrade#
 HUpgradingwikidocuments

 To be notified of the myxwiki.org server upgrade you can follow
 myxwiki on twitter:
 http://twitter.com/myxwiki

 Thanks,
 -XWiki Community

 ------------------------------

 Message: 2
 Date: Thu, 4 Aug 2016 13:09:46 +0200 (CEST)
 From: St?phane LASSIRE &lt;slassire(a)cesap.asso.fr&gt;
 To: "XWiki Users" &lt;users(a)xwiki.org&gt;
 Subject: Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE:
         "IOException
 Message-ID: &lt;007d01d1ee40$d2d3d270$787b7750$(a)cesap.asso.fr&gt;
 Content-Type: text/plain;       charset="utf-8"

 Hello Thomas,

 Well, this is strange story.

 For persistent session I found a tip here : uncomment the rule in
 context.xml :

 <Context>

     <!-- Default set of monitored resources -->
     <WatchedResource>WEB-INF/web.xml</WatchedResource>

     <!-- Uncomment this to disable session persistence across Tomcat
 restarts -->
     <Manager pathname="" />
     <!--
     <Manager pathname="" />
     -->
 **end of context.xml**
 And it is OK

 The answer to your question :

 root@CESAP-WIKI01:/usr/lib/xwiki/WEB-INF/lib# ll
 xwiki-platform-container-*
 -rw-r--r-- 1 root root 24971 juil. 29 17:26
 xwiki-platform-container-api-8.2.1.jar
 -rw-r--r-- 1 root root 35318 juil. 29 17:26
 xwiki-platform-container-servlet-8.2.1.jar

 The jar file is there.

 Could it be a problem with tomcat 7.0.56 ?
 Will it be easier for me to migrate to tomcat8 ? and  put away the tomcat7
 unstable

 Thanks

 Cordialement

 St?phane Lassire
 Charg? de l'informatique et de la communication
 T?l direct : 01 42 85 81 87
 Courriel : slassire(a)cesap.asso.fr

 -----Message d'origine-----
 De : users [mailto:users-bounces@xwiki.org] De la part de Thomas Mortagne
 Envoy? : jeudi 4 ao?t 2016 11:51
 ? : XWiki Users
 Objet : Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException

 Ok this time it's a very different error which indeed looks more serious.
 But it still seems related to persistent storage of the session and in this
 case it seems to be trying to load a saved request (which is really not the
 kind of thing that make sense to store). For me your Tomcat is in a pretty
 weird state and try to load stuff that don't make much sense in the context
 of XWiki but I don't know anything about persistent storage. Seems to be to
 have something to clean somewhere and some option to disable (if it's still
 enabled).

 Tomcat cannot find the class
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
 which is supposed to be located in jar
 /usr/lib/xwiki/WEB-INF/lib/xwiki-platform-container-servlet-<version>.jar.

 You should probably check if you have this jar file and if tomcat is
 allowed
 to read it.

 On Thu, Aug 4, 2016 at 11:42 AM, St?phane LASSIRE &lt;slassire(a)cesap.asso.fr&gt;
 wrote:
  Hello Thomas,

 THanks for your help.

 That's the strange behaviour.
 Catalina log file came with lot of messages from solr (some indexing
 problems), but I do have on the browser only a blank page.

 I just changed the Xmx java tuning from 512 to 1024 (I though it was
 may be a memory error).
 But same behaviour : on launching a percentage on the browser from 12
 to 50% and a blank page.

 Last Catalina :
 ao?t 04, 2016 11:36:12 AM
 org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory
 [/usr/share/tomcat7/common/classes],
 exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/common],  exists:
  [false], isDirectory: [false], canRead: [false]
ao?t 04, 2016 11:36:12
 AM org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory
 [/usr/share/tomcat7/server/classes],
 exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/server],  exists:
  [false], isDirectory: [false], canRead: [false]
ao?t 04, 2016 11:36:12
 AM org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory
 [/usr/share/tomcat7/shared/classes],
 exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
 validateFile
 AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/shared],  exists:
  [false], isDirectory: [false], canRead: [false]
ao?t 04, 2016 11:36:12
 AM org.apache.coyote.AbstractProtocol init
 INFOS: Initializing ProtocolHandler ["http-bio-8080"] ao?t 04, 2016
 11:36:12 AM org.apache.catalina.startup.Catalina load
 INFOS: Initialization processed in 720 ms ao?t 04, 2016 11:36:12 AM
 org.apache.catalina.core.StandardService
 startInternal
 INFOS: D?marrage du service Catalina
 ao?t 04, 2016 11:36:12 AM org.apache.catalina.core.StandardEngine
 startInternal
 INFOS: Starting Servlet Engine: Apache Tomcat/7.0.56 (Debian) ao?t 04,
 2016 11:36:12 AM org.apache.catalina.startup.HostConfig
 deployDescriptor
 INFOS: D?ploiement du descripteur de configuration
 /etc/tomcat7/Catalina/localhost/xwiki.xml
 2016-08-04 11:36:32,385 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.enterprise:xwiki-enterprise-ui-mainwiki-7.1.2] on namespace
 [wiki:xwiki] (InvalidExtensionException: No compatible extension is
 installed for dependency
 [org.xwiki.platform:xwiki-platform-chart-plugin-7.1.2])
 2016-08-04 11:36:32,403 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.contrib.forum:application-forum-ui-1.9.4]
 (InvalidExtensionException: No compatible extension is installed for
 dependency [org.xwiki.platform:xwiki-platform-ratings-api-6.4.4])
 2016-08-04 11:36:32,404 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.platform:xwiki-platform-search-lucene-ui-6.4.2] on
 namespace [wiki:xwiki] (InvalidExtensionException: No compatible
 extension is installed for dependency
 [org.xwiki.platform:xwiki-platform-search-lucene-api-6.4.2])
 2016-08-04 11:36:35,578 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Starting embedded Solr server...
 2016-08-04 11:36:35,578 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Using Solr home directory:
 [/var/lib/xwiki/data/solr]
 2016-08-04 11:36:39,896 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Started embedded Solr server.
 ao?t 04, 2016 11:36:40 AM org.apache.catalina.session.StandardManager
 doLoad

 GRAVE: "ClassNotFoundException" lors du chargement de sessions
 persistantes:
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
         at java.lang.Thread.run(Thread.java:745)

 ao?t 04, 2016 11:36:40 AM org.apache.catalina.session.StandardManager
 startInternal
 GRAVE: Exception au chargement des sessions depuis le stockage
 persistant (persistent storage)
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
         at java.lang.Thread.run(Thread.java:745)

 Cordialement

 St?phane Lassire
 Courriel : slassire(a)cesap.asso.fr

 -----Message d'origine-----
 De : users [mailto:users-bounces@xwiki.org] De la part de Thomas
 Mortagne Envoy? : jeudi 4 ao?t 2016 11:03 ? : XWiki Users Objet : Re:
 [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException

 It's the first time I see this error.

 Not even sure what a persistent session is. Maybe Tomcat is configured
 to stored the session on disk to get it back when restarting and
 something put a not serializable object
 (DefaultStringEntityReferenceResolver
 which is indeed not serializable) in it.

 Is XWiki running properly after that ? Even if it's indicated GRAVE it
 seems to me you just lost this part of the session but XWiki does not
 really expect the session to be serailized anyway so you should
 probably disable that if possible.

 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users 

 --
 Thomas Mortagne
 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users

 ------------------------------

 Message: 3
 Date: Thu, 4 Aug 2016 14:22:04 +0200
 From: Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt;
 To: XWiki Users &lt;users(a)xwiki.org&gt;
 Subject: Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE:
         "IOException
 Message-ID:
         <CAPnKnLGN7HUc984H621sZUVwng4-QnfhXr3PVS-NscMnAMa1+Q@mail.
 gmail.com>
 Content-Type: text/plain; charset=UTF-8

 I'm still using Tomcat 7 (7.0.52 on Ubuntu 14.04) and I never had this
 kind of issue.

 On Thu, Aug 4, 2016 at 1:09 PM, St?phane LASSIRE &lt;slassire(a)cesap.asso.fr&gt;
 wrote:
  Hello Thomas,

 Well, this is strange story.

 For persistent session I found a tip here : uncomment the rule in
 context.xml :

 <Context>

     <!-- Default set of monitored resources -->
     <WatchedResource>WEB-INF/web.xml</WatchedResource>

     <!-- Uncomment this to disable session persistence across Tomcat
 restarts -->
     <Manager pathname="" />
     <!--
     <Manager pathname="" />
     -->
 **end of context.xml**
 And it is OK

 The answer to your question :

 root@CESAP-WIKI01:/usr/lib/xwiki/WEB-INF/lib# ll  xwiki-platform-container-*
  -rw-r--r-- 1 root root 24971 juil. 29 17:26
 xwiki-platform-container-api-8.2.1.jar
 -rw-r--r-- 1 root root 35318 juil. 29 17:26
 xwiki-platform-container-servlet-8.2.1.jar

 The jar file is there.

 Could it be a problem with tomcat 7.0.56 ?
 Will it be easier for me to migrate to tomcat8 ? and  put away the  tomcat7
  unstable

 Thanks

 Cordialement

 St?phane Lassire
 Charg? de l'informatique et de la communication
 T?l direct : 01 42 85 81 87
 Courriel : slassire(a)cesap.asso.fr

 -----Message d'origine-----
 De : users [mailto:users-bounces@xwiki.org] De la part de Thomas  Mortagne
  Envoy? : jeudi 4 ao?t 2016 11:51
 ? : XWiki Users
 Objet : Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE:  "IOException

 Ok this time it's a very different error which indeed looks more serious.
 But it still seems related to persistent storage of the session and in  this
  case it seems to be trying to load a saved
request (which is really not  the
  kind of thing that make sense to store). For me
your Tomcat is in a  pretty
  weird state and try to load stuff that don't
make much sense in the  context
  of XWiki but I don't know anything about
persistent storage. Seems to be  to
  have something to clean somewhere and some option
to disable (if it's  still
  enabled).

 Tomcat cannot find the class
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
 which is supposed to be located in jar
 /usr/lib/xwiki/WEB-INF/lib/xwiki-platform-container-  servlet-<version>.jar.

 You should probably check if you have this jar file and if tomcat is  allowed
  to read it.

 On Thu, Aug 4, 2016 at 11:42 AM, St?phane LASSIRE <  slassire(a)cesap.asso.fr&gt;
  wrote:
> Hello Thomas,
>
> THanks for your help.
>
> That's the strange behaviour.
> Catalina log file came with lot of messages from solr (some indexing
> problems), but I do have on the browser only a blank page.
>
> I just changed the Xmx java tuning from 512 to 1024 (I though it was
> may be a memory error).
> But same behaviour : on launching a percentage on the browser from 12
> to 50% and a blank page.
>
> Last Catalina :
> ao?t 04, 2016 11:36:12 AM
> org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory
> [/usr/share/tomcat7/common/classes],
> exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
> 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/common],  exists:
 > [false], isDirectory: [false], canRead:
[false] ao?t 04, 2016 11:36:12
> AM org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory
> [/usr/share/tomcat7/server/classes],
> exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
> 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/server],  exists:
 > [false], isDirectory: [false], canRead:
[false] ao?t 04, 2016 11:36:12
> AM org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory
> [/usr/share/tomcat7/shared/classes],
> exists: [false], isDirectory: [false], canRead: [false] ao?t 04, 2016
> 11:36:12 AM org.apache.catalina.startup.ClassLoaderFactory
> validateFile
> AVERTISSEMENT: Problem with directory [/usr/share/tomcat7/shared],  exists:
   [false],
isDirectory: [false], canRead: [false] ao?t 04, 2016 11:36:12
 AM org.apache.coyote.AbstractProtocol init
 INFOS: Initializing ProtocolHandler ["http-bio-8080"] ao?t 04, 2016
 11:36:12 AM org.apache.catalina.startup.Catalina load
 INFOS: Initialization processed in 720 ms ao?t 04, 2016 11:36:12 AM
 org.apache.catalina.core.StandardService
 startInternal
 INFOS: D?marrage du service Catalina
 ao?t 04, 2016 11:36:12 AM org.apache.catalina.core.StandardEngine
 startInternal
 INFOS: Starting Servlet Engine: Apache Tomcat/7.0.56 (Debian) ao?t 04,
 2016 11:36:12 AM org.apache.catalina.startup.HostConfig
 deployDescriptor
 INFOS: D?ploiement du descripteur de configuration
 /etc/tomcat7/Catalina/localhost/xwiki.xml
 2016-08-04 11:36:32,385 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.enterprise:xwiki-enterprise-ui-mainwiki-7.1.2] on namespace
 [wiki:xwiki] (InvalidExtensionException: No compatible extension is
 installed for dependency
 [org.xwiki.platform:xwiki-platform-chart-plugin-7.1.2])
 2016-08-04 11:36:32,403 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.contrib.forum:application-forum-ui-1.9.4]
 (InvalidExtensionException: No compatible extension is installed for
 dependency [org.xwiki.platform:xwiki-platform-ratings-api-6.4.4])
 2016-08-04 11:36:32,404 [localhost-startStop-1] WARN
 ltInstalledExtensionRepository - Invalid extension
 [org.xwiki.platform:xwiki-platform-search-lucene-ui-6.4.2] on
 namespace [wiki:xwiki] (InvalidExtensionException: No compatible
 extension is installed for dependency
 [org.xwiki.platform:xwiki-platform-search-lucene-api-6.4.2])
 2016-08-04 11:36:35,578 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Starting embedded Solr server...
 2016-08-04 11:36:35,578 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Using Solr home directory:
 [/var/lib/xwiki/data/solr]
 2016-08-04 11:36:39,896 [localhost-startStop-1] INFO
 o.x.s.s.i.EmbeddedSolrInstance - Started embedded Solr server.
 ao?t 04, 2016 11:36:40 AM org.apache.catalina.session.StandardManager
 doLoad

 GRAVE: "ClassNotFoundException" lors du chargement de sessions
 persistantes:
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
         at java.lang.Thread.run(Thread.java:745)

 ao?t 04, 2016 11:36:40 AM org.apache.catalina.session.StandardManager
 startInternal
 GRAVE: Exception au chargement des sessions depuis le stockage
 persistant (persistent storage)
 java.lang.ClassNotFoundException:
 org.xwiki.container.servlet.filters.SavedRequestManager$SavedRequest
         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
         at java.lang.Thread.run(Thread.java:745)

 Cordialement

 St?phane Lassire
 Courriel : slassire(a)cesap.asso.fr

 -----Message d'origine-----
 De : users [mailto:users-bounces@xwiki.org] De la part de Thomas
 Mortagne Envoy? : jeudi 4 ao?t 2016 11:03 ? : XWiki Users Objet : Re:
 [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException

 It's the first time I see this error.

 Not even sure what a persistent session is. Maybe Tomcat is configured
 to stored the session on disk to get it back when restarting and
 something put a not serializable object
 (DefaultStringEntityReferenceResolver
 which is indeed not serializable) in it.

 Is XWiki running properly after that ? Even if it's indicated GRAVE it
 seems to me you just lost this part of the session but XWiki does not
 really expect the session to be serailized anyway so you should
 probably disable that if possible.

 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users 

 --
 Thomas Mortagne
 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users
 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users 

 --
 Thomas Mortagne

 ------------------------------

 Message: 4
 Date: Thu, 4 Aug 2016 14:14:26 +0000
 From: Hofst?tter Mario &lt;Mario.Hofstaetter(a)automationx.com&gt;
 To: &quot;users(a)xwiki.org&quot; &lt;users(a)xwiki.org&gt;
 Subject: [xwiki-users] How to create a link to a page translation?
 Message-ID:
         &lt;E9FF2BDE6BD0C34D903C19E1B596E80F44C3A3BC(a)08GR54.gawgroup.com&gt;
 Content-Type: text/plain; charset="iso-8859-1"

 Hello,

 I want to create a wiki link which opens the current page in a given
 language. I tried the following:
 {{velocity}} [[English>>doc:$doc.fullName/?language=en]]{{/velocity}}

 But it does not work, it generates a create page link. I could not find
 anything on http://platform.xwiki.org/xwiki/bin/view/Main/
 XWikiSyntax?syntax=2.1&section=Links either.
 How may I achieve this? Thank you.
 Mario

 ------------------------------

 Message: 5
 Date: Thu, 4 Aug 2016 16:41:53 +0200
 From: Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt;
 To: XWiki Developers &lt;devs(a)xwiki.org&gt;rg>, XWiki Users &lt;users(a)xwiki.org&gt;
 Subject: [xwiki-users] [ANN] Contrib Parent pom 6.4-3
 Message-ID:
         <CAPnKnLG1dFJ1qC9+Xvn60xSs0ePH_39gPU9vsE89H5G0+
 xqPoA(a)mail.gmail.com&gt;
 Content-Type: text/plain; charset=UTF-8

 I just released a 6.4-3 version of the Contrib Parent pom. Mostly
 merged improvement I made in the 7.4 branch.

 --
 Thomas Mortagne

 ------------------------------

 Subject: Digest Footer

 _______________________________________________
 users mailing list
 users(a)xwiki.org
 http://lists.xwiki.org/mailman/listinfo/users

 ------------------------------

 End of users Digest, Vol 109, Issue 11
 **************************************

Re: [xwiki-users] users Digest, Vol 109, Issue 11