Introduction
I want to take the opportunity to show what we have been doing in last year and also what we have done so far as members of the community. Unlike other years I have decided to keep this post less technical compare to the past years and compared to the other posts on Java Advent this year.
This year marks the fourth year since the first OpenJDK hackday was held in London (supported by LJC and its members) and also when the Adopt OpenJDK program was started. Four years is a small number on the face of 20 years of Java, same goes to the size of the Adopt OpenJDK community which forms a small part of the Java community (9+ million users). Although the post is non-technical in nature, the message herein is fairly important for the future growth and progress of our community and the next generation developers.
Creations of the community
Over the many months a number of members of our community contributed and passed on their good work to us. In no specific order I have enlisted these picking them from memory. I know there are more to name and you can help us by sharing those with us (we will enlist them here). So here are some of those that we can talk about and be proud of, and thank those who were involved:
- Getting Started page – created to enabled two way communication with the members of the community, these include a mailing list, an IRC channel, a weekly newsletter, a twitter handle, among other social media channels and collaboration tools.
- Adopt OpenJDK project: jitwatch – a great tool created by Chris Newland, its one of its kind, ever growing with features and helping developers fine-tune the performance of your Java/JVM applications running on the JVM.
- Adopt OpenJDK: GSK – a community effort gathering knowledge and experience from hackday attendees and OpenJDK developers on how to go about with OpenJDK from building it to creating your own version of the JDK. Many JUG members have been involved in the process, and this is now a e-book available in many languages (5 languages + 2 to 3 more languages in progress).
- Adopt OpenJDK vagrant scripts – a collection of vagrant scripts initially created by John Patrick from the LJC, later improved by the community members by adding more scripts and refactoring existing ones. Theses scripts help build OpenJDK projects in a virtualised container i.e. VirtualBox, making building, and testing OpenJDK and also running and testing Java/JVM applications much easier, reliable and in an isolated environment.
- Adopt OpenJDK docker scripts – a collection of docker scripts created with the help of the community, this is now also receiving contributions from a number of members like Richard Kolb (SA JUG). Just like the vagrant scripts mentioned above, the docker scripts have similar goals, and need your DevOps foo!
- Adopt OpenJDK project: mjprof – mjprof is a Monadic jstack analysis tool set. It is a fancy way to say it analyzes jstack output using a series of simple composable building blocks (monads). Many thanks to Haim Yadid for donating it to the community.
- Adopt OpenJDK project: jcountdown – built by the community that mimics the spirit of ie6countdown.net. That is, to encourage users to move to the latest and greatest Java! Many thanks to all those involved, you can already see from the commit history.
- Adopt OpenJDK CloudBees Build Farm – thanks to the folks at CloudBees for helping us host our build farm on their CI/CD servers. This one was initially started by Martijn Verburg and later with the help of a number of JUG members have come to the point that major Java projects are built against different versions of the JDK. These projects include building the JDKs themselves (versions 1.7, 1.8, 1.9, Jigsaw and Shenandoah). This project has also helped support the Testing Java Early project and Quality Outreach program.
These are just a handful of such creations and contributions from the members of the community, some of these projects would certainly need help from you. As a community one more thing we could do well is celebrate our victories and successes, and especially credit those that have been involved whether as individuals or a community. So that our next generation contributors feel inspired and encourage to do more good work and share it with us.
Contributions from the community
In a recent tweet and posts to various Java / JVM and developer mailing lists, I requested the community to come forward and share their contribution stories or those from others with our community. The purpose was two-fold, one to share it with the community and the other to write this post (which in turn is shared with the community). I was happy to see a handful of messages sent to me and the mailing lists by a number of community members. I’ll share some of these with you (in the order I have received them).
I don’t know if that counts as contribution but I’ve hacked on the
OpenJDK compiler for fun several times. For example I added a new
thought up ‘maybe’ keyword which produces randomly executed code:
https://blog.sebastian-daschner.com/entries/maybe_keyword_ in_java
Thomas Modeneis:
Thanks for writing, I like your initiative, its really good to show how people are doing and what they have been focusing on. Great idea.From my part, I can tell about the DevoxxMA last month, I did a talk on the Hacker Space about the Adopt the OpenJDK and it was really great. We had about 30 or more attendees, it was in a open space so everyone that was going to any talk was passing and being grabbed to have a look about the topic, it was really challenging because I had no mic. but I managed to speak out loud and be listen, and I got great feedback after the session. I’m going to work over the weekend to upload the presentation and the recorded video and I will be posting here as soon as I have it done! 🙂
Martijn Verburg:
Good initiative. So the major items I participated in were Date and Time and Lambdas Hackdays (reporting several bugs), submitted some warnings cleanups for OpenJDK. Gave ~10 pages of feedback for jshell and generally tried to encourage people more capable than me to contribute :-).
Andrii Rodionov:
Olena Syrota and Oleg Tsal-Tsalko from Ukraine JUG: Contributing to JSR 367 test code-base (https://github.com/olegts/
jsonb-spec), promoting ‘Adopt a JSR’ and JSON-B spec at JUG UA meetings (http://jug.ua/2015/04/json- binding/) and also at JavaDay Lviv conference (http://www.slideshare.net/ olegtsaltsalko9/jsonb-spec).
Contributors
