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
. Each project should list the technical requirements.
Hope this helps,
Marius
On Fri, Aug 5, 2016 at 1:29 PM, AMAN SATYA <satyaaman97(a)gmail.com> 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, <users-request(a)xwiki.org> wrote:
Send users mailing list submissions to
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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 <thomas.mortagne(a)xwiki.com>
To: XWiki Users <users(a)xwiki.org>rg>, XWiki Developers <devs(a)xwiki.org>
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 <slassire(a)cesap.asso.fr>
To: "XWiki Users" <users(a)xwiki.org>
Subject: Re: [xwiki-users] Xwiki on Debian 8 + Tomcat7 - GRAVE:
"IOException
Message-ID: <007d01d1ee40$d2d3d270$787b7750$(a)cesap.asso.fr>
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 <
slassire(a)cesap.asso.fr>
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 <thomas.mortagne(a)xwiki.com>
To: XWiki Users <users(a)xwiki.org>
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 <slassire(a)cesap.asso.fr
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>
> > 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 <Mario.Hofstaetter(a)automationx.com>
To: "users(a)xwiki.org" <users(a)xwiki.org>
Subject: [xwiki-users] How to create a link to a page translation?
Message-ID:
<E9FF2BDE6BD0C34D903C19E1B596E80F44C3A3BC(a)08GR54.gawgroup.com>
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 <thomas.mortagne(a)xwiki.com>
To: XWiki Developers <devs(a)xwiki.org>rg>, XWiki Users <users(a)xwiki.org>
Subject: [xwiki-users] [ANN] Contrib Parent pom 6.4-3
Message-ID:
<CAPnKnLG1dFJ1qC9+Xvn60xSs0ePH_39gPU9vsE89H5G0+
xqPoA(a)mail.gmail.com>
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
**************************************
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users mailing list
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