Re: [xwiki-devs] Fwd: Get started with XWiki

AFAIR, Eclipse also does this (i.e. bundle their own JRE), we could look into how they do it.

On a quick check, OpenJDK's JRE is only 38.4 MB ( http://jdk.java.net/java-se-ri/8) ... I find that acceptable.

FTR, the JDK is 164 MB. Thanks, Eduard On Mon, May 14, 2018 at 11:40 AM, Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com > One issue with embedded Java (OpenJDK I guess) is that it would make > the zip quite huge. > > On Mon, May 14, 2018 at 10:30 AM, Eduard Moraru &lt;enygma2002(a)gmail.com&gt; > > Hi, > > > > On the palliative side (i.e. not actually fixing, but at least making > life > > a bit easier), we might consider a naming scheme for the downloadable > that > > includes that supported java version, e.g. xwiki-10.3-java8.zip (though > > this might also lead users to thinking that the java 8 runtime is > > included... which might not be that bad of an idea, if we think about > it... > > at least for the zip version that is for demo purposes, which already > > contains the web server, the database, but still expects the user to > > understand and install the correct Java runtime, which makes no sense.) > > > > So, yeah... TL;DR: add the java8 runtime to the .zip package and make > life > > easier for everyone. Optionally (though not sure if needed anymore, if we > > bundle it), include it in the .zip file name. > > > > Of course, the production install, if done manually (i.e. not through > > .deb/.rpm packages), expects that the user reads the documentation. > > > > Thanks, > > Eduard > > > > On Mon, May 14, 2018 at 10:19 AM, Vincent Massol &lt;vincent(a)massol.net&gt; > > > >> Hi devs, here’s a feedback we received, FYI. > >> > >> Ideas? > >> > >> Thanks > >> -Vincent > >> > >> > Begin forwarded message: > >> > > >> > From: Vincent Massol > >> > Subject: Re: Get started with XWiki > >> > Date: 14 May 2018 at 09:10:06 CEST > >> > To: XXX > >> > Cc: XXX > >> > > >> > Hi Christian, > >> > > >> >> On 12 May 2018, at 14:25, Christian XXX wrote: > >> >> > >> >> It's not working. > >> >> > >> >> And as usual ith java, the log does not help. Maybe if I were an > >> expert? But an app is supposed to be installed by just 'smart' users, > not > >> experts. > >> > > >> > If you choose the easy installation methods we propose then it’s easy > >> and you have nothing to do. > >> > > >> > Which distribution did you choose and use? > >> > > >> >> And there is no help from the website. > >> >> > >> >> Oracle Linux 7. > >> >> Linux localhost.localdomain 4.1.12-124.14.5.el7uek.x86_64 #2 SMP Fri > >> May 4 15:26:53 PDT 2018 x86_64 x86_64 x86_64 GNU/Linux > >> >> Java 10 > >> >> Xwiki 10.3 > >> >> tomcat. > >> >> > >> >> If it is not compatible whith this java. It should not install. > >> > > >> > It’s just not been tested with Java 10 yet. It’s not even fully > working > >> with Java 9. > >> > > >> > Note that it’s hard to check for the java version for all the > >> distributions since XWiki is a webapp and the XWiki WAR can just be > dropped > >> in a servlet container and thus we don’t have a startup script and a > place > >> where we can put a check. All we could do is have a Servlet Listener > that > >> would emit a big stack trace (like the one you got) and that would say > at > >> the innermost level that XWiki requires Java <= 8. But even that > wouldn’t > >> be good since it would prevent testing in Java 9+. We want feedback from > >> users about what works/what doesn’t work so improve support for Java 9 > and > >> 10. > >> > > >> >> If it is compatible with only one version of java, which one? > >> > > >> > You need to read the installation page ;) > >> > > >> > See http://www.xwiki.org/xwiki/bin/view/Documentation/ > >> AdminGuide/Installation/ and especially: > >> > http://www.xwiki.org/xwiki/bin/view/Documentation/ > >> AdminGuide/Installation/#HHardwareandSoftwarerequirements > >> > > >> >> Here is the error: > >> >> > >> >> > >> >> Error number 4001 in 4: Error while evaluating velocity template > >> colorThemeInit.vm > >> >> Error number 4001 in 4: Error while evaluating velocity template > >> colorThemeInit.vm > >> >> com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while > >> evaluating velocity template colorThemeInit.vm > >> > > >> > [snip] > >> > > >> >> Caused by: java.lang.IllegalStateException: No standard field found > >> for reverse order comparator! > >> >> at org.jboss.marshalling.river.Protocol.<clinit>(Protocol. > >> java:276) > >> >> ... 249 mor > >> > > >> > [snip > >> > > >> >> Caused by: java.lang.IllegalStateException: No standard field found > >> for reverse order comparator! > >> >> at org.jboss.marshalling.river.Protocol.<clinit>(Protocol. > >> java:276) > >> >> ... 249 mor > >> > > >> > What this says is that JBoss Infinispan (which we use) is not > compatible > >> with Java 10. Apparently this is fixed in recent version of JBoss > >> Marshalling: https://issues.jboss.org/browse/JBMAR-216. We probably > just > >> need to wait for JBoss Infinispan to release a new version that uses > JBoss > >> Marshalling 2.1.0.Final. > >> > > >> > What would be awesome would be for you to report the problem of using > >> XWiki with Java 10 on https://jira.xwiki.org so that we can have an > issue > >> for it and work to make it work. > >> > > >> > Note that I’m replying to this message to help you out but it’s not > the > >> right place to post a question and get help normally. For that we have a > >> user forum at https://forum.xwiki.org/. > >> > > >> > I’m sorry you had some issues. OTOH you’re looking for trouble by > trying > >> with Java 10. There are very few (if any!) java app that currently work > >> with Java 9 and 10. You’d be much better off using Java 8. On the > positive > >> side, if you raise the issue on https://jira.xwiki.org, then you will > >> transform your negative experience into a positive one, by contributing > to > >> the development of XWiki and helping out future users. > >> > > >> > Thanks > >> > -Vincent Massol > >> > >> [snip] > >> > >> > > > > -- > Thomas Mortagne >