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

On 14 May 2018, at 14:13, Eduard Moraru <enygma2002(a)gmail.com> wrote: On Mon, May 14, 2018 at 12:46 PM, Vincent Massol <vincent(a)massol.net> wrote: FTR, I never suggested adding an installer, just including in the ZIP an already available JDK.

Thanks, Eduard > > Here’s an idea: > * Merge Try and Download on xwiki.org into a single entry point > * Have a wizard in that entry point and ask some questions to the user > (with the option to skip the wizard) to direct the user to use the right > distribution for him/her. > * Thus, promote more the cloud option for users who are not technical and > want a quick way to test xwiki. > > It wouldn’t solve everything for sure but maybe it would help? > > Thanks > -Vincent > >> On 14 May 2018, at 11:32, Eduard Moraru &lt;enygma2002(a)gmail.com&gt; wrote: >> >> There seem to be some resources on the topic: >> >> https://github.com/libgdx/libgdx/wiki/Bundling-a-JRE >> https://stackoverflow.com/questions/7071133/how-to- > bundle-a-jre-with-launch4j >> https://codeiseasy.wordpress.com/2012/07/31/including-a- > jre-in-a-tycho-build/ >> >> ...so it's not such an uncommon practice. >> >> On the legal side, OpenJDK should be the obvious choice: >> https://opensource.stackexchange.com/questions/ > 4824/is-it-legal-to-bundle-oracles-jre-with-an-open-source-program/4826 >> >> IMO, it would make sense to provide the full and ready to test package, >> rather than an only 90% ready to test one. >> >> Thanks, >> Eduard >> >> On Mon, May 14, 2018 at 12:04 PM, Thomas Mortagne < > thomas.mortagne(a)xwiki.com >>> wrote: >> >>> On Mon, May 14, 2018 at 10:49 AM, Eduard Moraru &lt;enygma2002(a)gmail.com&gt; >>> wrote: >>>> AFAIR, Eclipse also does this (i.e. bundle their own JRE), we could > look >>>> into how they do it. >>> >>> Eclipse JDT comes with its own Java compiler but you are supposed to >>> install Java to run Eclipse itself. >>> >>>> >>>> On a quick check, OpenJDK's JRE is only 38.4 MB ( >>>> http://jdk.java.net/java-se-ri/8) ... I find that acceptable. >>> >>> Not sure the license allow us to embbed what's on that page. >>> >>> 38.4MB is probably only for one system, I think you need 3 of those >>> (Linux, Windows, Mac) >>> >>>> >>>> FTR, the JDK is 164 MB. >>>> >>>> Thanks, >>>> Eduard >>>> >>>> On Mon, May 14, 2018 at 11:40 AM, Thomas Mortagne < >>> thomas.mortagne(a)xwiki.com >>>>> wrote: >>>> >>>>> 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 >> >>>>> wrote: >>>>>> 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 >> >>>>> wrote: >>>>>> >>>>>>> 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 >>>>> >>> >>> >>> >>> -- >>> Thomas Mortagne >>> > >