Open Source and OpenJDK: Do They Deliver? by Simon Ritter

Transcript

1. © Copyright Azul Systems 2016 © Copyright Azul Systems 2015 @speakjava azul.com Open Source and OpenJDK:
 Do They Deliver? Simon Ritter Deputy CTO, Azul Systems 1
2. © Copyright Azul Systems 2016 2
3. © Copyright Azul Systems 2016 1983-85 GNU = GNU is Not UNIX
4. © Copyright Azul Systems 2016 1991
5. © Copyright Azul Systems 2016 Linux Operating System +
6. © Copyright Azul Systems 2016 1997 The Cathedral & The Bazaar Eric S. Raymond
7. © Copyright Azul Systems 2016 1998
8. © Copyright Azul Systems 2016 1998 8
9. © Copyright Azul Systems 2016 Apache == “A patchy” web server 1999
10. © Copyright Azul Systems 2016 Perception v. Reality
11. © Copyright Azul Systems 2016 1995 11
12. © Copyright Azul Systems 2016 1997 Sun Microsystems sues Microsoft over Java implementation in IE4
13. © Copyright Azul Systems 2016 1998
14. © Copyright Azul Systems 2016 1999 17
15. © Copyright Azul Systems 2016 JCP Golden Triangle Specifications (JSRs) Reference Implementation (RI) Technology Compatability Kit (TCK) Can you build it? Is the spec. unambiguous? Does the RI conform to the spec?
16. © Copyright Azul Systems 2016 2005-2011 Apache Harmony
17. © Copyright Azul Systems 2016 2006 http://bit.ly/ospnytail “We’re open-sourcing the ponytail...”
18. © Copyright Azul Systems 2016 2006 javac Hotspot
19. © Copyright Azul Systems 2016 2007 (Almost) all remaining code IcedTea
20. © Copyright Azul Systems 2016 2007
21. © Copyright Azul Systems 2016 2009
22. © Copyright Azul Systems 2016 2010
23. © Copyright Azul Systems 2016 2011
24. © Copyright Azul Systems 2016 2016 Jigsaw Cloud Ease of use Optimizations Simplified Generics <> Fork-Join Project Coin Strings in switch statements invokedynamic Streams No more Perm Gen Try-with-resources Lambda Expressions Date Time API Compact Profiles
25. © Copyright Azul Systems 2016
26. © Copyright Azul Systems 2016 OpenJDK Components
27. © Copyright Azul Systems 2016 2014 Twitter-Scale Computing with OpenJDK
28. © Copyright Azul Systems 2016 OpenJDK Activity www.openhub.net/p/openjdk
29. © Copyright Azul Systems 2016 OpenJDK Activity OpenJDK has had 33,108 commits made by 389 contributors representing 6,521,276 lines of code Android has had 524,685 commits made by 3,385 contributors representing 13,417,499 lines of code
30. © Copyright Azul Systems 2016
31. © Copyright Azul Systems 2016 Adopt OpenJDK ▪ What is it? – JUG lead initiative – Incubator for projects – Lots of open source code to work on – Improve OpenJDK and Java itself – Help make patch contributions to Java
32. © Copyright Azul Systems 2016 Adopt OpenJDK: Getting Started ▪ https://java.net/projects/adoptopenjdk/pages/AdoptOpenJDK ▪ github.com/adoptopenjdk ▪ bitbucket.org/adoptopenjdk ▪ wiki.openjdk.java.net 32
33. © Copyright Azul Systems 2016 Azul: zulu.org zulu.org/forum
34. © Copyright Azul Systems 2016 Get Involved openjdk.java.net
35. © Copyright Azul Systems 2016 © Copyright Azul Systems 2015 @speakjava azul.com Questions Simon Ritter Deputy CTO, Azul Systems 35