[OSGeo-Discuss] Java 11 code sprint taking shape for October 22-26th

[Torsten Friebe]

Hi Jody,

thanks for setting up this code sprint. For the deegree project this  
is very important too. Besides getting deegree ready for Java 11+ we  
are also facing the issue that deegree code has dependencies to  
Oracle's JAI and other outdated libraries.
I will share this with the deegree Developer mailing list and  
hopefully we can join the code sprint.

Cheers
Torsten

Zitat von Jody Garnett <jody.garnett at gmail.com>:

> When:  October 22-26th
> Where: North America (Victoria, BC), Europe (Italy or UK proposed), Oceania
> (recommendations welcome)
> Wiki: https://wiki.osgeo.org/wiki/Java_2018_Code_Sprint
>
> If you or your project is interested in taking part, even remotely, please
> add yourself to the above wiki page!
>
> The Java community has a challenge ahead, with recent policy changes
> setting the Java platform on a six-month release cycle. We also have  
> a *python3
> moment* as our open source libraries are tasked with upgrading to the use
> of the "jigsaw" module system.
>
> Top level applications like GeoServer and GeoNetwork need to make some
> changes in order to run at all. Mostly this requires a dependency review,
> upgrading to new libraries such as Spring 5 that are compatible with Java
> 11. Many of these libraries are broken due to changes to how reflection is
> handled.
>
> Java libraries like JTS and GeoTools are put in an awkward position as a
> bottleneck on the safe use of the module system (see module hell problem
> <http://blog.joda.org/2017/05/java-se-9-jpms-automatic-modules.html>). A
> further complication for is a restriction preventing two jars from making
> use of the same package.
>
> Planning is currently underway:
>
>    - GSIP 171 Java 18.9 Compatibility
>    <https://github.com/geoserver/geoserver/wiki/GSIP-171> (GeoServer)
>    - Strategy for GeoNetwork
>     
> <https://github.com/geonetwork/core-geonetwork/wiki/OSGeo-Java-codesprint-2018>
>    - Restructure GeoTools into Jigsaw modules
>     
> <https://github.com/geotools/geotools/wiki/Restructure-GeoTools-into-Jigsaw-modules>
>
> Recommended reading:
>
>    - What Comes After JDK 8? <https://www.azul.com/what-comes-after-jdk-8/> -
>    java release cycle changes
>    - It's time! Migrating to Java 11
>     
> <https://medium.com/criciumadev/its-time-migrating-to-java-11-5eb3868354f9>
> -
>    spring upgrade example
>    - The State of the Module System
>    <http://openjdk.java.net/projects/jigsaw/spec/sotms> - technical
>    background


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