Slide 1

Slide 1 text

Open Source Open Doors - Open Potential

Slide 2

Slide 2 text

This is a very very very long gag @hendrikEbbers Hendrik Ebbers • Karakun Co-Founder • Founder of JUG Dortmund • JSR EG member • JavaOne Rockstar, Java Champion • AdoptOpenJDK / Adoptium TSC member

Slide 3

Slide 3 text

This is a very very very long gag @hendrikEbbers Hendrik Ebbers • I (and collect) boardgames • I STARWARS • I Hardrock • I Dogs

Slide 4

Slide 4 text

This is a very very very long gag @hendrikEbbers Content • OpenSource FACTS • GitHub and Open Source Work fl ows • Automate everything • Foundations and open standards • How to start your open source career

Slide 5

Slide 5 text

OpenSource today

Slide 6

Slide 6 text

This is a very very very long gag @hendrikEbbers Facts about OpenSource • The usage of open source software is growing every year • Even most closed source projects depend on open source today • Today many companies trust in open source

Slide 7

Slide 7 text

This is a very very very long gag @hendrikEbbers Why to use open source • What aspects were important to you when choosing open source based solutions in your company? 87 % 85 % open standards big community 81 % security 80 % no vendor lock-in 79 % stability 78 % cost savings transparency & trust 75 %

Slide 8

Slide 8 text

This is a very very very long gag @hendrikEbbers Why do we trust? • Open source means that the sources of a product can be seen / requested by everyone • Open source does not mean that everybody can mutate the source

Slide 9

Slide 9 text

This is a very very very long gag @hendrikEbbers Why is it more secure? • We are human • We create bugs • We create security issues • The developers of our 
 dependencies are 
 humans, too

Slide 10

Slide 10 text

This is a very very very long gag @hendrikEbbers Why is it more secure? • Security issues can be found much faster • Security audits can be done by anybody

Slide 11

Slide 11 text

This is a very very very long gag @hendrikEbbers Why is it more secure? • Based on GitHub there is a 59% change to receive a security alert / issue within the next 12 month 
 • Common Vulnerabilities and Exposures (CVE) 
 are tracked in open databases 
 (see http://cve.mitre.org) Based on your dependencies

Slide 12

Slide 12 text

This is a very very very long gag @hendrikEbbers Why is it more secure? github.com

Slide 13

Slide 13 text

This is a very very very long gag @hendrikEbbers Why is it more secure? github.com • It is always important to know your dependencies • Especially when you do JavaScript...

Slide 14

Slide 14 text

This is a very very very long gag @hendrikEbbers Why is it more secure? • Tools like dependabot automatically inform you on critical issues in your dependencies • Example based on CVE-2020-8203 (in lodash) Common JS lib 04.23.2012 vulerability created in lodash 07.08.2020 vulerability fi xed in lodash 07.15.2020 over 5 million projects receive dependabot alert 10.02.2020 over 40% of projects have upgraded to fi xed version github.com

Slide 15

Slide 15 text

GitHub

Slide 16

Slide 16 text

This is a very very very long gag @hendrikEbbers Facts about GitHub • 1.9 billion contributions in 2019 • Over 50 million registered developers users 2008 2020 2025 50 m 100 m

Slide 17

Slide 17 text

This is a very very very long gag @hendrikEbbers New to Git(Hub) ? • Today GIT is the standard version control system (for open source) today. • Most modern open source projects are hosted at GitHub

Slide 18

Slide 18 text

This is a very very very long gag @hendrikEbbers New to Git(Hub) ? • GitHub makes the usage of GIT very easy and provide visual tooling for work fl ows • But a user needs to understand GIT to contribute to projects • You can fi nd many very good tutorials online https://rogerdudler.github.io/git-guide/

Slide 19

Slide 19 text

This is a very very very long gag @hendrikEbbers More than a repository • GitHub provides much more than just GIT repositories: • Issues • Wiki • Pull Requests • ...

Slide 20

Slide 20 text

This is a very very very long gag @hendrikEbbers More than a repository • Best starting points are issues • Mostly all people start at GitHub by creating an issue for an open source project • Have you already created an issue?

Slide 21

Slide 21 text

No content

Slide 22

Slide 22 text

No content

Slide 23

Slide 23 text

No content

Slide 24

Slide 24 text

Add a Title Add a description. Try to add as much info as possible. Important: - How to reproduce the issue? - Why do you need it - Metadata (environment, version,…)

Slide 25

Slide 25 text

No content

Slide 26

Slide 26 text

This is a very very very long gag @hendrikEbbers Some important rules • Always be friendly • Ask questions • Listen to the project maintainers • Stay in touch

Slide 27

Slide 27 text

Pull Request

Slide 28

Slide 28 text

This is a very very very long gag @hendrikEbbers Let's contribute • A Pull request is the work fl ow that allows user to contribute to projects • Pull requests let you tell others about changes you want to add to a repository • A pull request can be commented and reviewed • Follow-up commits can be added • The changes of a pull request can be merged by a maintainer of the project

Slide 29

Slide 29 text

No content

Slide 30

Slide 30 text

No content

Slide 31

Slide 31 text

This is a very very very long gag @hendrikEbbers Some important rules • Do not create a pull request without an issue • Mention in the issue that you plan to do a pull request • Start with a small issue

Slide 32

Slide 32 text

This is a very very very long gag @hendrikEbbers Reviews

Slide 33

Slide 33 text

No content

Slide 34

Slide 34 text

This is a very very very long gag @hendrikEbbers Preview + Test of Integration • Several tools can interact with GitHub • Automatically build & deploy pull request and integration results • Examples are Netli fl y or Heroku

Slide 35

Slide 35 text

This is a very very very long gag @hendrikEbbers Pull Requests in Enterprise • GitHub published some average numbers regarding the timing of pull requests • The numbers are based on enterprise (non-hobby) projects pull request opened fi rst review done last review done pull request merged github.com review requested 1h 36m to merge pull request 54m till fi rst review 12m till merge

Slide 36

Slide 36 text

JavaFX

Slide 37

Slide 37 text

This is a very very very long gag @hendrikEbbers First OpenJDK project at Git • JavaFX is (still) part of OpenJDK • JavaFX was the fi rst project of the OpenJDK that has been migrated to git & GitHub • With project Skara the OpenJDK is moved to git & GitHub https://github.com/openjdk/jfx

Slide 38

Slide 38 text

This is a very very very long gag @hendrikEbbers First OpenJDK project at Git • Since OpenJDK projects are now hosted at GitHub contribution is super easy • Every GitHub user can create a PR (+ some paperwork to have you checked as a valid OpenJDK commiter)

Slide 39

Slide 39 text

This is a very very very long gag @hendrikEbbers All OS Builds with GitHub Actions • OpenJDK projects already use GitHub Actions for CI tasks • Automatically build and test JavaFX on all 3 big operation systems for each pull request https://github.com/openjdk/jfx/pull/619/checks

Slide 40

Slide 40 text

This is a very very very long gag @hendrikEbbers All OS Builds with GitHub Actions • GitHub Actions can do more • Every used test containers in an enterprise project? • Just let GitHub run thousands of integration tests for you

Slide 41

Slide 41 text

This is a very very very long gag @hendrikEbbers PullRequests for OpenJDK • Happily more and more people of the Java community contribute to OpenJDK • Good tutorials and 'Getting started' guides are missing We are working on that issue

Slide 42

Slide 42 text

Eclipse Adoptium

Slide 43

Slide 43 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium • Eclipse Adoptium is the successor of AdoptOpenJDK 
 
 
 


Slide 44

Slide 44 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium • Eclipse Adoptium is the successor of AdoptOpenJDK 
 
 
 • Adoptium WG is based on leaders of the ecosystem

Slide 45

Slide 45 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium • Eclipse Adoptium is the successor of AdoptOpenJDK 
 
 
 
 • Eclipse Adoptium provides an OpenJDK distribution • That distribution is called Temurin

Slide 46

Slide 46 text

This is a very very very long gag @hendrikEbbers Why not 'Eclipse AdoptOpenJDK' ? • The answer is quite simple: 
 
 
 
 
 • The Eclipse Foundation trademarks all names and 'AdoptOpenJDK' is just not trademark able OpenJDK Java ® ®

Slide 47

Slide 47 text

The Eclipse Temurin Java runtime builds by Adoptium can not be named 'AdoptOpenJDK' since OpenJDK is owned by Oracle ™ ™ ® ™ ™ ®

Slide 48

Slide 48 text

No content

Slide 49

Slide 49 text

This is a very very very long gag Temurin by Adoptium OpenJDK Sources Temurin Installer Binaries / Distribution ci.adoptopenjdk.net (ci.adoptium.net in near future) adoptium.net github.com/adoptium/installer github.com/adoptium/jdk github.com/adoptium/jdk8u Build / CI Infrastructure github.com/adoptium/temurin8-binaries/releases github.com/adoptium/temurin11-binaries/releases github.com/adoptium/temurin16-binaries/releases github.com/adoptium/temurin17-binaries/releases Platform Builds AQAvit github.com/adoptium/temurin-build github.com/adoptium/aqa-tests * * Redirect to @hendrikEbbers

Slide 50

Slide 50 text

This is a very very very long gag @hendrikEbbers Just call the distro 'Adoptium' ... • NO! We want to be convenient: 
 
 Like ___________ provides ___________ the Adoptium project provides Temurin Azul Systems Zulu Amazon Coretto Bellsoft Liberica Oracle Oracle JDK

Slide 51

Slide 51 text

This is a very very very long gag @hendrikEbbers Why 'Temurin' ? TEMURIN • The answer is quite simple: 
 
 
 
 


Slide 52

Slide 52 text

This is a very very very long gag • The answer is quite simple: 
 
 
 
 
 @hendrikEbbers Why 'Temurin' ? N N N N O H3 C CH3 CH3 O N N N N O H3 C CH3 CH3 O CH3 O Caffeine Temurin

Slide 53

Slide 53 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium is MORE • NO! Adoptium is much more than 'just the binaries': AQAVIT is the quality and runtime branding evaluation project for Java SE runtimes and associated technology. Any Java runtime Open source AQAVIT test & benchmark suite Enterprise ready runtime

Slide 54

Slide 54 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium is MORE • NO! Adoptium is much more than 'just the binaries':

Slide 55

Slide 55 text

This is a very very very long gag @hendrikEbbers Eclipse Adoptium is MORE • Adoptium is much more than 'just the binaries': Community

Slide 56

Slide 56 text

JakartaEE & MicroPro fi le

Slide 57

Slide 57 text

This is a very very very long gag @hendrikEbbers Open Speci fi cations • JakartaEE / Micropro fi le is not 'old JavaEE' 
 • JakartaEE / Micropro fi le speci fi cations are used by Spring Boot, Micronaut, Quarkus, ... • When you create enterprise applications and (micro-)services in Java you need to know and use the specs

Slide 58

Slide 58 text

This is a very very very long gag @hendrikEbbers Open Speci fi cations • A spec always contains 3 parts: • API that contains the Java interfaces, annotations... • SPEC that contains the documentation of the API, its usage and interoperability with other speci fi cations • TCK that contains a test kit to validate the full functionality of an implementation

Slide 59

Slide 59 text

This is a very very very long gag @hendrikEbbers Eclipse Foundation • Both JakartaEE and Micropro fi le are top level projects at Eclipse Foundation • An open source foundation allows a transparent and solid support and sponsoring by companies and organisations • An open source foundation provides work fl ows, rules, infrastructure and support (for example in marketing issues)

Slide 60

Slide 60 text

This is a very very very long gag @hendrikEbbers Eclipse Foundation • All projects and speci fi cations are hosted at GitHub • Everybody can do a pull request • Contributions and discussions are more than welcome • Attend a meeting to start your open source journey! https://bit.ly/3l4I4E5 Jakarta EE Community Calendar

Slide 61

Slide 61 text

Hacktoberfest

Slide 62

Slide 62 text

This is a very very very long gag @hendrikEbbers Hacktoberfest • A month long celebration of open source software • It happens every year in October. • Everyone can support open-source by contributing changes, and then earn a limited edition swag https://hacktoberfest.digitalocean.com Visit

Slide 63

Slide 63 text

This is a very very very long gag @hendrikEbbers Good First Issue • Search for issues that are labeled with 'good fi rst issue' • As a maintainer take care to have such issues... • ... with a good description and additional help

Slide 64

Slide 64 text

This is a very very very long gag @hendrikEbbers Good First Issue Description of the issue Best to add examples and name needed Actions Generic information Step by step information of the work fl ow Generic information of the project Links for questions, documentation and contact options

Slide 65

Slide 65 text

Cyberland

Slide 66

Slide 66 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Du fi ndest die gezeigten Themen spannende • Du hast keine Ahnung wo du anfangen sollst? • Das Cyberland hat ein neues Event-Format für dich!

Slide 67

Slide 67 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Lass uns zusammen an Open Source Projekten arbeiten • Lass uns zusammen die (ersten) Hürden nehmen • Lass dir helfen ein Commiter zu werden

Slide 68

Slide 68 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp 29.09.2021 - 18:00 Virtuelles Event https://cyberland.ijug.eu/2021-09-open-source-camp/ https://bit.ly/3yTLezf

Slide 69

Slide 69 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Keynote von Adam Bien • Vorstellung der Eclipse Projekte von 
 Commiter:innen

Slide 70

Slide 70 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Keynote von Adam Bien • Vorstellung der Eclipse Projekte von 
 Commiter:innen Wenn dieser Vortrag wieder zum besten gewählt wird, gibt es nächstes Jahr einen Adam Bien Starschnitt zum Ausdrucken !!!

Slide 71

Slide 71 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Keynote von Adam Bien • Vorstellung der Eclipse Projekte von 
 Commiter:innen Wenn dieser Vortrag wieder zum besten gewählt wird, gibt es nächstes Jahr einen Adam Bien Starschnitt zum Ausdrucken !!! Scherz!!! Wenn dieser Vortrag nicht gewählt wird, gibt es einen Starschnitt von mir!!!!

Slide 72

Slide 72 text

This is a very very very long gag @hendrikEbbers Cyberland OS Camp • Viel wichtiger: Wir hacken zusammen und wollen unsere ersten PRs für Adoptium / JakartaEE umsetzen

Slide 73

Slide 73 text

This is a very very very long gag @hendrikEbbers iJUG Open Source Stipendium • Der iJUG möchte seine 
 Mitglieder:innen fördern • Der iJUG ist Eclipse Member & 
 Mitglied in den Adoptium, Micropro fi le & JakartaEE Arbeitsgruppen • Fördert Mitarbeit an Projekten z.B. durch Freikarte zum JavaLand https://github.com/ijug-ev/Stipendium

Slide 74

Slide 74 text

Let's work together

Slide 75

Slide 75 text

This is a very very very long gag @hendrikEbbers Call for Action • Contribution to open source projects becomes easier every day • Join initiatives like the Cyberland open source camp • Start with simple tasks like typos or documentation • Ask questions, create issues, listen to other commiters

Slide 76

Slide 76 text

Stay safe & healthy

Slide 77

Slide 77 text

@hendrikEbbers dev.karakun.com