Adopt OpenJDK: History, Present & Future
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An Adopt OpenJDK presentation delivered at Javaland 2014 near (Phantasialand) Munich, Germany.
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Adopt OpenJDK: History, Present & Future
- 1. Adopt OpenJDK: the past, the present & the future @adoptopenjdk OpenJDK: Reference Implementation for Java (since Java 7 SE) Daniel Bryant @danielbryantuk Mani Sarkar @theNeomatrix369 http://bit.ly/1lZtesx London Java Community @ljcjug
- 2. Agenda ● Introduction ● What is OpenJDK ? ● OpenJDK history... ● OpenJDK consists of... ● What is Adopt OpenJDK ? ● Demos! ● Review so far… ● Thanks ● Q & A, announcements, discussions...!
- 3. What is OpenJDK ? OpenJDK (Open Java Development Kit) is a free and open source implementation of the Java Platform, Standard Edition (Java SE).[1] It is the result of an effort Sun Microsystems began in 2006. The implementation is licensed under the GNU General Public License (GNU GPL) with a linking exception. Were it not for the GPL linking exception, components that linked to the Java class library would be subject to the terms of the GPL license. OpenJDK is the official Java SE 7 reference implementation.[2][3] [2] Moving to OpenJDK as the official Java SE 7 Reference Implementation [3] Java Platform, Standard Edition 7 Reference Implementations
- 4. What is OpenJDK (actually) ? - RI from Java 7 SE onwards - Free and open source - Source to build your own Java - the language & platform - Learn more about the internals of Java - the language & platform
- 5. ...the Past Let’s unveil the past before us…
- 6. OpenJDK history... 2006 2007 2010 Beyond Rest of OpenJDK is released Oracle Sun launches OpenJDK (javac, Hotspot) adopts OpenJDK (Sun is acquired) 2011 2012 2014 Lambdas, Nashorn & Adopt OpenJDK OpenJDK: Reference implementation of Java 7 SE Java 10 Java 8 Java 9 World-wide Community involvement
- 7. What does OpenJDK consists of ? Codebase made up of hg repos (jdk, Hotspot, nashorn, etc…) Languages used: largely in Java, rest C/C++, assembly, bash, awk & others
- 8. How do the different parts of OpenJDK fit in ?
- 9. What is Adopt OpenJDK ? ∙ JUG lead initiative ∙ Incubator for projects ∙ Lots of Open Source projects to work on ∙ Improve OpenJDK & Java itself ∙ Help make patch contributions to Java
- 10. What we have done ? Lots of questions... Why should you be involved ? Who is involved ? What difference have they already made ? How does it help OpenJDK ? How to join?
- 11. Entry levels... Starter level Intermediate level Advance level
- 12. Answer to all these questions... Where and how to get the answers ? https://java.net/projects/adoptopenjdk/pages/AdoptOpenJDK
- 13. ...the Present... And the present is here, for the takers...
- 14. One of our OpenJDK heros... Fredrik Öhrström, ex-Oracle The “star“ behind build-infra OpenJDK Build Benchmarks - build-infra (Nov 2011) Mentioned in http://mreinhold.org/blog/jdk8-ga !
- 15. Demo time! Yay! - Bring up your laptop, touch-pads, smartphones, handhelds, etc… Adopt OpenJDK - Getting Started Kit http://bit.ly/17ovGUB Adopt OpenJDK intermediate & advance experiences http://bit.ly/1ckphOl - Read and try out the examples during the demo!
- 16. Resources Homepage: http://adoptopenjdk.java.net/ Join our new Mailing list adopt-openjdk@googlegroups.com adoption-discuss@openjdk.java.net Join the IRC channel #adoptopenjdk on irc.freenode.net On Twitter @adoptopenjdk Newspaper http://paper.li/adoptopenjdk/1370465075 Adopt OpenJDK Getting Started Kit http://bit.ly/17ovGUB Adopt OpenJDK intermediate & advance experiences http://bit.ly/1ckphOl
- 17. Review so far... - What, who and why…. - Learnt practical things… - Thinking of next steps…
- 18. ...the Future And what does the future hold for us… ...the future is what we make of it ?
- 19. Looking forward to... Java 9, Java 10 and beyond ! Made possible with OpenJDK ?
- 20. Thanks to... The OpenJDK team & Oracle LJC, its founder, leaders & members The Adopt OpenJDK community! Organisers of this conference! Above all you, for your undivided attention !
- 21. Let’s change the Java ecosystem, together! Daniel Bryant @danielbryantuk Mani Sarkar @theNeomatrix369 Follow us on twitter @adoptopenjdk Write to us adopt-openjdk@googlegroups.com adoption-discuss@openjdk.java.net
- 22. Q & A, announcements, discussions...! - We need your help and support! - Our thanks to so many who have made it possible!
- 23. Adopt OpenJDK: the past, the present & the future @adoptopenjdk OpenJDK: Reference Implementation for Java (since Java 7 SE) Daniel Bryant @danielbryantuk Mani Sarkar @theNeomatrix369 http://bit.ly/1lZtesx London Java Community @ljcjug
- 24. OpenJDK history... 2006 2007 2010 Beyond Rest of OpenJDK is released Oracle Sun launches OpenJDK (javac, Hotspot) adopts OpenJDK (Sun is acquired) 2011 2012 2014 Lambdas, Nashorn & Adopt OpenJDK OpenJDK: Reference implementation of Java 7 SE Java 10 Java 8 Java 9 World-wide Community involvement
- 25. What does OpenJDK consists of ? Codebase made up of hg repos (jdk, Hotspot, nashorn, etc…) Languages used: largely in Java, rest C/C++, assembly, bash, awk & others
- 26. Resources Homepage: http://adoptopenjdk.java.net/ Join our new Mailing list adopt-openjdk@googlegroups.com adoption-discuss@openjdk.java.net Join the IRC channel #adoptopenjdk on irc.freenode.net On Twitter @adoptopenjdk Newspaper http://paper.li/adoptopenjdk/1370465075 Adopt OpenJDK Getting Started Kit http://bit.ly/17ovGUB Adopt OpenJDK intermediate & advance experiences http://bit.ly/1ckphOl
- 27. Let’s change the Java ecosystem, together! Daniel Bryant @danielbryantuk Mani Sarkar @theNeomatrix369 Follow us on twitter @adoptopenjdk Write to us adopt-openjdk@googlegroups.com adoption-discuss@openjdk.java.net