The One to Rule Them (Us) All

Transcription

1 The One to Rule Them (Us) All with dr. sc. Branko Mihaljević & Aleksander Radovan by HUJAK (Hrvatska udruga Java korisnika) 1

2 The Hobbit Java Adventure I think I'm quite ready for another adventure! - Bilbo Baggins 1991 Project Stealth Green Team brainstorming in Aspen James Gosling and Oak interpreter 1994 first Java compiler in Java HotJava graphical browser 1995 Oak renamed to Java Publicly announced at SunWorld'95 2

3 Java History Timeline by HUJAK The Java history began Our precious! HUJAK founded in December 2011 In the meantime HUJAK (co-)organized 15+ conferences Java publicly announced x JavaCro, 4x Javantura, 3x Java 2x WebCamp Java 1 JDK 1.0 Oak Java 1.1 JDK Java 1.2 J2SE 1.2 Playground Java 1.3 J2SE 1.3 Kestrel Java 1.4 J2SE 1.4 Merlin Java 5 J2SE 5.0 Tiger Java SE 6 Mustang Java SE 7 Dolphin Java SE 8 Spider Java SE Java SE Java JDK Alpha / Beta JPE J2EE 1.2 Java Professional Edition J2EE J2EE Java EE Java EE HUJAK Java EE , HUJAK 2017/18 Java EE 8 3

4 One Ring to Rule Them All Hmm, close but Have you ever heard about the Java Ring? 5

5 Original ibutton ibutton by Dallas Seminconductors (Maxim) Single-chip trusted microcomputer 1-million transistors Modular exponentiator for RSA 128 kb RAM Unalterable realtime clock Single electrical contact and ground return (1-Wire) Lithium-backed non-volatile static RAM Tamper resistance (rapid zeroization) Source: An introduction to the Java Ring, JavaWorld, April 1 st

6 Java-powered ibutton In 1998 produced Java-powered ibutton JVM housed in 16mm small and extremely rugged and secure stainless-steel case Fully compatible with Java Card 2.0 standard Could be attached to any accessory (i.e. key fob, wallet, watch, necklace, bracelet, or finger ring) And we've got (our precious) Java Ring Source: An introduction to the Java Ring, JavaWorld, April 1 st

7 The Fellowship of the Java Ring Continued growth of Java For 22 years 10 Million Java Developers Many certified #1 Development Platform In the Cloud and with Microservices 15 Billion Devices run Java From Enterprise to IoT 8

8 Popularity of Java language PYPL index (PopularitY of Programming Language) May 2017 Source: PYPL PopularitY of Programming Language, pypl.github.io, May 2017, Pierre Carbonnelle 9

9 Java at GitHub/Stack Overflow 1. JavaScript 2. Java 3. Python 4. PHP 5. C#, C++ 7. CSS, Ruby 9. C 10. Objective-C Source: The RedMonk Programming Language Rankings, RedMonk, January 2017, redmonk.com/sogrady/2017/03/17/language-rankings-1-17/ 10

10 Java JavaCro17 We presented many surveys in the past But one question was always there What about Croatia? And now for the first time we have our own Java survey 122 JavaCro attendees responded 11

11 Survey Experience Years of experience in software development? Gender? Woman Man N/A 0,8% 14,8% 84,4% 10-14y 19,7% 5-9y 25,4% 15-19y 5,7% 20+y 6,6% 3-4y 23,8% 0-1y 1,6% 1-2y 17,2% 12

12 Survey Education Level PhD 2,5% Highschool 9,0% Selftaught 1,6% What is your education level? BS 17,2% MS 69,7% 13

13 Survey Job Position Other C-Level Manager Project Manager Software Consultant Team Leader Software Architect Senior Developer Developer Junior Developer 5,7% 4,9% 2,5% 1,6% 11,5% Name (title or best description) of job position? 13,1% 13,1% 18,9% 28,7% 0% 5% 10% 15% 20% 25% 30% 35% 14

14 Company Size Startup 0,8% Small 20,5% Midsize 41,8% Survey About Company Enter prise / large 36,1% Number of Developers Freeleancer 0,8% ,5% ,3% 9,3% ,4% ,4% ,0% 15

15 Application (Project) Types Libraries Frontend Backend 14,8% 54,1% Development Project Types 75,4% Mobile Apps Desktop Apps 29,5% 35,2% Web Apps 87,7% 0% 20% 40% 60% 80% 100% 16

16 The Two Towers (Platforms) Java SE present and future Java EE present and future Other Languages Web Frameworks Libraries App Servers JavaScript Frameworks 17

17 Survey Java SE versions Java SE platform versions you use in projects Java 9 0,8% Java 8 85,2% Java 7 72,1% Java 6 40,2% 0% 20% 40% 60% 80% 100% 18

18 Survey Java SE versions In Production Java 6 18,0% Java 7 41,8% Java 8 40,2% In Development Java 7 24,8% Java 9 Java 6 0,8% 5,8% Java 8 68,6% 19

19 Survey Java 8 Interest Parts of Java 8 considered most interesting Date and Time API 35,0% Optional return types 22,5% Stream API 61,7% Lambdas 74,2% -10% 10% 30% 50% 70% 90% 20

20 Looking Forward to Java 9 Better performance 69,6% Modularity Developer convenience Better diagnostics Better garbage collection 36,5% 27,8% 29,6% 33,9% New JVM options Better logging Better Javadoc support 7,0% 14,8% 20,0% 21

21 Latest News Java SE 8u131 released April 18, 2017 Next Critical Patch Update is in July 18, 2017 JDK 9 General Availability July 27, 2017 Early Access Release Build 168 IDE support Modularity in Java 9 (or not?) Concerns regarding Jigsaw Red Hat, Maven, et al. Articles by Scott Stark, Mike Hearn, Gabriela Motroc IBM and Red Hat voted "no" to Jigsaw 22

22 Survey Java EE Java EE platform versions you use in projects Java EE 7 50,0% Java EE 6 40,0% Java EE 5 10,0% None 28,3% 0% 20% 40% 60% 23

23 Survey Java EE versions In Production In Development Java EE 5 1,7% None None 25,8% Java 26,1% Java EE 7 EE 7 41,7% Java EE 5 42,9% Java EE 6 29,2% 1,7% Java EE 6 27,7% 24

24 Looking Forward to Java EE 8 REST and JAX-RS 2.1 HTTP/2 and Servlet 4.0 Eventing and Async Event Model JSON-B and JSON-P OAuth and OpenID Reactive Style Configuration API Service Health and Check Secret Management and Storage 26,7% 26,7% 24,8% 21,0% 18,1% 13,3% 8,6% 43,8% 55,2% 0% 20% 40% 60% 25

25 Survey Other Languages Scala Groovy Ceylon Clojure Kotlin Xtend Jython Python C++ C# PHP JavaScript Perl Ruby Swift Objective-C 0,0% 1,0% 5,8% 1,0% 2,9% 5,8% 1,9% 2,9% 1,9% 8,7% 15,4% 23,1% 13,5% 19,2% 11,5% Actively using other languages lately? 67,3% 26

26 Popularity of JVM Languages JVM Language Ranking from StackOverkill Source: JVM Language Ranking, StackOverkill, May

27 Survey Web Frameworks Spring MVC JSF Spring Boot Vaadin GWT Play framework Struts Wicket Grails Dropwizard 12,3% 7,9% 3,5% 5,3% 0,0% 4,4% 1,8% 24,6% 49,1% 70,2% 28

28 Web Frameworks Web Frameworks Index Top 10 by RebelLabs (ZeroTurnaround) Public data from StackOverflow, LinkedIn, GitHub, and Google search 29

29 Survey Libraries Libraries used commonly Testing 63,9% Logging 78,2% Apache commons 75,6% Spring libraries 63,0% 30

30 Survey App Servers Going Serverless Tomcat WebLogic GlassFish WildFly WebSphere JBoss Jetty Payara TomEE 8,3% 12,4% 13,2% 24,0% 33,1% 18,2% 9,9% 2,5% 0,8% 75,2% 0% 20% 40% 60% 80% 31

31 Survey JavaScript Frameworks None 23,2% Our own 4,5% Angular 58,9% Node.js React 13,4% 18,8% Ember Backbone 0,9% 0,9% 32

32 The Return of the Java King What about Tooling? IDEs Build tools CI Version Control Profilers APMs Virtualizations Containers 33

33 Survey IDEs Eclipse 73,0% IntelliJ IDEA 54,1% NetBeans Sublime STS Other 14,8% 7,4% 8,2% 2,5% 0% 20% 40% 60% 80% 34

34 Survey Build Tools Maven 87,9% Gradle 25,2% Ant 23,3% Other 4,3% 35

35 Survey Continuous Integration Jenkins 79,6% Bamboo 12,2% TeamCity Hudson TravisCI RTC TFS Other 3,1% 2,0% 3,1% 8,2% 2,0% 3,1% 36

36 Survey Version Control Git 81,8% Subversion Mercurial CVS RTC TFS Other 20,7% 11,6% 11,6% 5,0% 1,7% 0,8% 37

37 Survey Profilers VisualVM 47,6% Java Mission Control JProfiler XRebel NetBeans Profiler YourKit Other 23,2% 18,3% 17,1% 11,0% 4,9% 2,4% 38

38 Survey APMs New Relic 34,0% AppDynamics 26,0% Dynatrace (Compuware) 10,0% TraceView (SolarWinds) 10,0% Stackify Retrace 6,0% 39

39 Virtualization and Containers Docker 60,7% Kubernetes 11,9% Mesos 1,2% AWS ECS 4,8% VMWare 53,6% 40

40 Survey Microservices Using microservices? 32,5% Yes If yes, is using microservices making development easier? 47,9% Yes, 38% Same as before If no, do you intend to use microservices in the future? 58,3% Yes, 34% I don't know 41

41 Survey Agile Using agile methodologies? 74,8% Yes If not, do you intend to? 78,5% Yes If yes, what agile practices? Certified agile 10,4% Tasks with sprints Daily standups 59,4% 62,5% Kanban board 36,5% Well written specifications 24,0% 42

42 JavaCro'17 Survey Conclusion Right now use Java 8 and Java EE 7 New features wait for Java 9 and Java EE 8 Try new languages Scala or Groovy "Safe" choices: Frameworks Spring MVC & Spring Boot App servers Tomcat IDEs Eclipse or IDEA or (NetBeans) Build tools Maven or (Gradle) CI Jenkins Version control Git Try microservices 43

43 Open Source & Volunteering Involved in open source? 14,5% Yes, 22,2% intends to If yes, how many projects? 62,1% only 1 Others from 2 to 6 projects, only one more than 10 Sling, Samza, Kubernetes, Enmasse, PanBI, GWT, Material Design, SportChef, Moodini Volunteering? 10,1% Yes If yes, where? HUJAK, Agile Croatia, Openblend, Programerko, JUG.ch, HackerGarten.net, OpenHeart, Biciklisti, ZAMAH 44

44 Where Else to Learn to Code Popular online learning resources: freecodecamp CodeAcademy Coursera Udemy KhanAcademy PluralSight EdX Udacity OdinProject CodeWars DevTips TreeHouse The New Boston Lynda.com Source: 2016 New Coder Survey, freecodecamp 45

45 IT/CS education in Croatia Where to study IT/CS in Croatia? 15 cities: Čakovec, Dubrovnik, Krapina, Križevci, Osijek, Pula, Rijeka, Sisak, Split, Šibenik, Varaždin, Velika Gorica, Zabok, Zagreb, Zaprešić 33 different institutions including 6 public/state universities 13 private colleges 80+ IT/CS/SE/CE programs Undergraduate (3-4 years) Graduate level (1-2 years) Doctoral (PhD) level Specialist level 46

46 Java Conferences in Croatia Conference Location Date Sessions Tracks Attendees Countries JavaCro'17 Rovinj Javantura v4 Zagreb HrOUG 2016 Rovinj (od 96) 1 (od 9) JavaCro'16 Rovinj Javantura v3 Zagreb JavaCro'15 Rovinj Javantura v2 Zagreb We (co-)organized 16 conferences!!! JavaCro'14 Poreč Javantura v1 Zagreb WebCamp 2013 Zagreb HrOUG 2013 Rovinj (od 90) 1 (od 7) JavaCro'13 #Javantura Tuhelj #JavaCro 50 #HrOUG 5 #proud HrOUG 2012 Rovinj (od 114) 1 (od 7) WebCamp 2012 Zagreb Java 2012 Tuhelj HrOUG 2011 Rovinj (od 96) 1 (od 9)

47 Attendees Sessions And we are growing JavaCro and Javantura conferences

48 Conferences HUJAK supports 49

49 45+ company members 50

50 Partners & Friends 51

51 Prizes and Giveaways Would you like to receive a prize for answering so many questions? :-) only one No Manning offered us 40% discount on all books use code: ctwjavacro17 And now prizes and giveaways!!! 52

52 Thank you & greetings from HUJAK! Web page hujak.hr LinkedIn group HUJAK Facebook group page HUJAK.hr Twitter twitter.com/hujak_hr 53