XWiki's back-end is written in Java (in this area is good to be familiar with the Servlet API and Hibernate) while the front-end is written in Velocity (server-side scripting) and JavaScript (jQuery) + HTML/CSS (Bootstrap). You can check the list of project ideas that have been proposed this year http://dev.xwiki.org/xwiki/bin/view/GoogleSummerOfCode/ . Each project should list the technical requirements. Hope this helps, Marius On Fri, Aug 5, 2016 at 1:29 PM, AMAN SATYA <[email protected]> wrote:
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, <[email protected]> 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)
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Message: 1 Date: Thu, 4 Aug 2016 12:14:46 +0200 From: Thomas Mortagne <[email protected]> To: XWiki Users <[email protected]>, XWiki Developers <[email protected]> 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 <[email protected]> To: "XWiki Users" <[email protected]> Subject: Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE: "IOException Message-ID: <[email protected]> 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 : [email protected]
-----Message d'origine----- De : users [mailto:[email protected]] 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 < [email protected]> 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 : [email protected]
-----Message d'origine----- De : users [mailto:[email protected]] 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 [email protected] http://lists.xwiki.org/mailman/listinfo/users
-- Thomas Mortagne _______________________________________________ users mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/users
------------------------------
Message: 3 Date: Thu, 4 Aug 2016 14:22:04 +0200 From: Thomas Mortagne <[email protected]> To: XWiki Users <[email protected]> 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 <[email protected]
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 : [email protected]
-----Message d'origine----- De : users [mailto:[email protected]] 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 < [email protected]> 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 : [email protected]
-----Message d'origine----- De : users [mailto:[email protected]] 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 [email protected] http://lists.xwiki.org/mailman/listinfo/users
-- Thomas Mortagne _______________________________________________ users mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/users _______________________________________________ users mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/users
-- Thomas Mortagne
------------------------------
Message: 4 Date: Thu, 4 Aug 2016 14:14:26 +0000 From: Hofst?tter Mario <[email protected]> To: "[email protected]" <[email protected]> Subject: [xwiki-users] How to create a link to a page translation? Message-ID: <[email protected]> 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§ion=Links either. How may I achieve this? Thank you. Mario
------------------------------
Message: 5 Date: Thu, 4 Aug 2016 16:41:53 +0200 From: Thomas Mortagne <[email protected]> To: XWiki Developers <[email protected]>, XWiki Users <[email protected]> Subject: [xwiki-users] [ANN] Contrib Parent pom 6.4-3 Message-ID: <CAPnKnLG1dFJ1qC9+Xvn60xSs0ePH_39gPU9vsE89H5G0+ [email protected]> 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
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End of users Digest, Vol 109, Issue 11 **************************************
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