History of Java

Transcript

1. History of Java From its inception till about now... bit.ly/1e3yqGS
2. Who are we ? Mani Sarkar @theNeomatrix369 Rafal Wicha @rafalwicha #historyofjavaparty
3. Disclaimer Ideas and opinions expressed here are only ours and you can certainly NOT hold us to it. YMMV. We’ve done our best to summarise more than 23 years of Java’s history. And FYI Java is the best platform ever!
4. Agenda • Java roots • Platform evolution • Open source • People!
5. © James Gosling 1990
6. Patrick Naughton © James Gosling 1990
7. Patrick Naughton Scott McNealy © James Gosling 1990
8. Patrick Naughton James Gosling © James Gosling 1990
9. © Google Maps 1991 Menlo Park, California Green Project
10. Duke here... ...and here 1992
11. The Internet 1993-95
12. Bill Joy Eric Schmidt 1993-95
13. Marc Andreessen 1995
14. Marc Andreessen 1995
15. Marc Andreessen 1995
16. © Google Maps Menlo Park, California
17. © Google Maps Oak maybe?
18. Silk DNA WebDancer NetProse 1995
19. Silk DNA WebDancer NetProse 1995
20. Silk DNA WebDancer NetProse 1995
21. May 1995 ALPHA
22. Jan 1996
23. JDK 1 • safe & secure • distributed & robust • interpreted, garbage collected • multi-threaded • architecture neutral • high performance Gosling’s goals for Java 1996
24. Different implementations of Java JRocket IcedTea ChaiVM Zing Dalvik SAPJVM OJVM IKVM.NET Zulu CloudVM-for-Java Harmony JBuilder Visual-Cafe Microsoft-JVM JavaOS Java-Chip LLVM Visual-J++ Java CVM HotSpot J9 Classic-JVM 1995-2014
25. Different implementations & misunderstanding Sun-Microsoft misunderstanding Java CVM HotSpot Microsoft-JVM Visual-J++ Windows Internet Explorer 1997
26. JDK 1.1 • inner classes f(x) = new Fun() { apply(x) { x * x }} • JavaBeans • JDBC • RMI • reflection • JIT (Microsoft VM) 1997
27. J2SE 1.2 (Playground) • Sun’s JIT virtual machine • Swing • Collections Joshua Bloch Doug Lea 1998
28. J2SE? • Java 2 Platform, Standard Edition • Java 2 Platform, Enterprise Edition • Java 2 Platform, Micro Edition 1998
29. J2SE 1.3 (Kestrel) HotSpot 2000
30. J2SE 1.4 (Merlin) • regular expressions • exception chaining • NIO 2002
31. J2SE 5.0 (Tiger) • generics • annotations • autoboxing • enums • varargs • for each • static imports 2004
32. Philip Wadler Martin Odersky Gilad Bracha Dave Stoutamire 2004
33. J2SE 5.0 - java.util.concurrent • executors • concurrent collections • atomic variables • synchronisers • new lock variants Doug Lea Brian Goetz 2004
34. JSE 6 (Mustang) improvements & bug fixes performance improvements OpenJDK was partially released (javac, HotSpot) 2006
35. Sun-Apache difficulty over TCK 2006
36. OpenJDK was fully released (rest of the components) 2007
37. 2007-2010 NULL (pausing, and thinking….)
38. Java goes to Oracle IBM willing to acquire Sun Oracle acquires Sun Oracle adopts OpenJDK 2010
39. Another misunderstanding Google vs Oracle misunderstandings 2010
40. JSE 7 (Dolphin) 2011 • invokedynamic (JRuby, Groovy) • strings in switch, try-with-resources, diamond operator (<>), multi-catch • ForkJoin OpenJDK is the reference implementation
41. OpenJDK history... 2006 2007 2010 Beyond Sun launches OpenJDK (javac, Hotspot) Rest of OpenJDK is released Oracle adopts OpenJDK (Sun is acquired) Lambdas, Nashorn & Adopt OpenJDK OpenJDK: Reference implementation of Java 7 SE Java 10 Java 9 2011 2012 2014 Java 8 World-wide Community involvement
42. LJC & other Java communities London Java Community wins the Duke’s Choice award at JavaOne 2012, contributions through the the Adopt OpenJDK and Adopt-a-JSR programs lead to it! LJC, SOUJava and other java communities world-wide collaborate to help improve Java!
43. OpenJDK hackdays... London Java Community organises hackdays every month, come along to contribute to the Java ecosystem. Everyone is welcome, more details on LJC’s Meetup.com page
44. Java 8 (unofficially Spider)
45. Java 8 (unofficially Spider) Date/Time API
46. Java 8 (unofficially Spider) Date/Time API Money/Currency API
47. Java 8 (unofficially Spider) Date/Time API Money/Currency API off-heap objects
48. Java 8 (unofficially Spider) Date/Time API Money/Currency API off-heap objects new JavaScript runtime
49. Java 8 (unofficially Spider) Date/Time API Money/Currency API off-heap objects new JavaScript runtime Project Nashorn
50. Java 8 (unofficially Spider) Date/Time API Money/Currency API off-heap objects new JavaScript runtime Project Nashorn PermGen removed annotations on Java type Compact profiles Generalized Target-Type Inference
51. Java 8 (unofficially Spider) Date/Time API Money/Currency API off-heap objects new JavaScript runtime Project Nashorn PermGen removed annotations on Java type Compact profiles Generalized Target-Type Inference Lambdas
52. Source: Oracle, 2011
53. Java touches our lives in many ways, we just may not be aware of it, but Java is everywhere!
54. Summary • About the creators • Early excitement & survivors • Difficulties & misunderstandings • Minor & major improvements • Open source & community activities
55. Thanks to... Feedback at @rafalwicha @theNeomatrix369 All the PEOPLE behind the inception & development of Java from its start. LJC for supporting the Java spirit in London. Gamesys and the organisers of this evening event! But above all you, Java developers!