Javantura v2 - The Road to Java - HUJAK & Oracle Croatia - Branko Mihaljević, Aleksander Radovan, Duško Vukmanović

HUJAK
&
The Road to Java Branko Mihaljević Aleksander Radovan Duško Vukmanović

The Road to Java
•History
•Present
•Future
www.hujak.hr
2

Java history timeline
•So, 20+ years of Java 
www.hujak.hr
3
1995
1998
2001
2004
2007
2010
2013
2016
2019
Java SE 11
2019/20
Java SE 10
2017/18
2016
2014-3-18
Java EE 7
2013-6-12
HUJAK
2011-12-13
2011-7-28
Java EE 6
2009-12-10
Java SE 6 Mustang
2006-12-11
Java EE 5
2006-5-11
Java 5 J2SE 5.0 Tiger
2004-9-30
J2EE 1.4
2003-11-11
Java 1.4 J2SE 1.4 Merlin
2002-2-6
J2EE 1.3
2001-9-24
Java 1.3 J2SE 1.3 Kestrel
2000-5-8
J2EE 1.2
1999-12-12
Java 1.2 J2SE 1.2 Playground
1998-12-8
JPE Java Professional Edition
1998-5
Java 1.1 JDK 1.1
1997-2-19
Java 1 JDK 1.0 Oak
1996-1-23
Java JDK Alpha/Beta
1995
© 2014, HUJAK
2010-1-27
Java SE 9
Java SE 7 Dolphin
Java SE 8 Spider
Java EE 8
2016
Java 2012
Javantura
Javantura v2

The Road to Java
•History
•Present
•Future
www.hujak.hr
4

Where are we now?
Some facts for 2014
•Java SE
•JDK 8 launched
•JDK 9 under construction
•...
•Java EE
•over 15 compatible app servers
•JSR 366 approved
•...
•Java Embedded
•Java ME 8 release
•ports for SoCs
•…
•Community
•OpenJDK Java SE 8 RI released
•Java SE 9 project created
•314 JUGs (37% more)
•conferences
•…
www.hujak.hr
5

Java outreach 2014 in numbers
•Java 8 Roadshow – 20 countries, 5000+ JUG members, 140.000 on-demand views
•NightHacking Tour – 40 visits, 7000+ developers, 150.000 on-demand views
•Java Evangelism – 75+ events, 25+ Hands on Labs, participating over 1 conference per week
www.hujak.hr
6

What's in Java 8?
•Lambdas – modernizing Java Language, biggest upgrade ever to the Java programming model
www.hujak.hr
7

Java EE
•We already know Java EE 7 well 
•Productivity – Annotated POJOs, less boilerplate code, integrated, tools ecosystem ..
•Scalability – multithreaded, asynchronous APIs (Servlet, EJB, JAX-RS), concurrency utilities …
•HTML5-readyness – JSON, WebSockets, JAX-RS …
•Enterprise demands – Java Message Service, Batch processing, distributed transactions …
•Community Driven Industry Standard
•But what we really use???
www.hujak.hr
8

Tools in development
www.hujak.hr
9
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Profiler
Code Quality Analysis
Continuous Integration
Debugger
Issue Tracker
Version Control
IDE
37%
45%
68%
71%
79%
91%
97%
•Which tools we really use and how much?
Source: Developer Productivity Report 2013, ZeroTurnaround, 2013.

IDEs
www.hujak.hr
0%
10%
20%
30%
40%
50%
Other
STS
NetBeans
IntelliJ IDEA
Eclipse
5%
4%
10%
33%
48%
10
•Which IDE do we use most?
Source: Java Tools & Technologies 2014, Rebellabs, ZeroTurnaround, May 2014

Tools in details code analysis, CI, build, VCS
www.hujak.hr
CVS
Mercurial
Subversion
GIT
8%
9%
57%
69%
TeamCity
Hudson
Bamboo
Jenkins
8%
8%
9%
70%
11
Other
Gradle
Ant (+Ivy)
Maven
5%
11%
17%
64%
PMD
Checkstyle
Findbugs
SonarQube
33%
45%
55%
56%

Application servers
•Which app servers we use?
www.hujak.hr
12
0%
10%
20%
30%
40%
50%
60%
70%
WebSphere
WebLogic
GlassFish
JBoss / WildFly
Jetty
Tomcat
9%
11%
13%
25%
49%
68%
6%
8%
10%
20%
38%
53%
4%
6%
7,50%
16%
12%
50%
Rebelabs, May
Typesafe, Oct
Typesafe, Feb
Source: Java 8 Survey, Typesafe, February 2014 & Java Tools & Technologies 2014, Rebellabs, ZeroTurnaround, May 2014 Software Stacks Market Share: August 2014, Jelastic.com
0%
20%
40%
60%
80%
Tomcat 7
Tomcat 6
GlassFish
Jetty
TomEE
86%
6%
4%
3%
1%
Jelastic

JVM & JDK
•Which JVM vendor?
•Which JDK(s)?
www.hujak.hr
13
Source: Java 8 Survey, Typesafe, February 2014
0%
50%
100%
Oracle
Dalvik
IBM
Other
Azul
96%
20%
7%
2%
1%
0%
50%
100%
Oracle Java SDK
OpenJDK
IBM JDK
88%
36%
5%

What we use mostly?
www.hujak.hr
14
Java SE 7
65%
SE version
Java EE 6
49%
EE version
Eclipse
48%
IDE
Hibernate
67%
ORM
Tomcat
50%
App server
Spring MVC
40%
Web fw
Jenkins
70%
CI
Git
69%
VCS
FindBugs
55%
CA
Maven
64%
Build
MySQL
65%
SQL DB
MongoDB
56%
NoSQL DB

Java 6 26%
Java 7 69%
Java 8
3%
Other 2%
Present & future
•Which Java platform are you using (Typesafe, Oct 2014)?
•Which Java platform are you using (Rebelabs, May 2014)?
www.hujak.hr
15
Source: Java 8 Survey, Typesafe, October 2014 & Java Tools & Technologies 2014, Rebellabs, ZeroTurnaround, May 2014
Java 5 2%
Java 6 26%
Java 7 65%
Java 8 7%
68% is using Java SE + Java EE!

J2EE 5%
Java EE 5 11%
Java EE 6 49%
Java EE 7 35%
Present & future #2
•Which Java EE platform are you using?
•If you are using Java 6 what is your plan?
www.hujak.hr
16
Source: Java Tools & Technologies 2014, Rebellabs, ZeroTurnaround, May 2014 & Java 8 Survey, Typesafe, February 2014
Java 6 23%
Java 7 41%
Java 8 33%
Java 9 3%

Java 8 – when & how?
•If you plan to upgrade to Java 8 – when?
•How do you now use Java 8?
www.hujak.hr
17
0-6 mo. 29%
6-12 mo. 25%
12+ mo. 13%
Not yet 33%
On Java 8 27%
0-6 mo. 21%
6-12 mo. 15%
12+ mo. 10%
Not yet 26%
Pilot/ testing 40%
Staging/ planning produ- ction 36%
In produ- ction 21%
Other 3%
Source: Java 8 Survey, Typesafe, February & October 2014
Feb 2014 Oct 2014

How to learn Java 8?
•New Java 8 MOOC course coming in 2015
•Books? 
www.hujak.hr
18

Java 8 – features
•Which features do you find most interesting?
www.hujak.hr
19
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
Other
JDBC 4.2
Enhance javac to Improve Build Speed
Nashorn JavaScript Engine
Remove the Permanent Generation
Date & Time API
Concurency Updates
Bulk Data Operation for Collections
Enhance Core Libraries with Lambda
Lambda Expressions & Virtual Extension Methods
2%
2%
8%
9%
10%
15%
16%
17%
30%
83%
Source: Java 8 Survey, Typesafe, February 2014

Java 8 – Lambdas?
•Do you use Lambdas?
•Opinion after use of Lambdas?
www.hujak.hr
20
Using Lambdas 45%
Exploring Lambdas 51%
What are Lambdas? 4%
More interested 68%
Less interested 9%
No opinion / not using 23%

Functional Programming & Scala
•Interested in Functional Programming?
•Impact of Lambdas on Scala adoption?
www.hujak.hr
21
Using FP 47%
Exploring FP 49%
What is FP? 4%
Positive 60%
Negative 22%
No opinion 16%
What are Lambdas? 2%

Java Embedded
•500.000 downloads
•20+ platforms ports
•PowerPC, Intel x86, MIPS, ARM, Freescale, Qualcomm …
•Industry Wide Collaboration
•Java Embedded MOOC
•Java SE Embedded 8
•Compact profiles, performance, optimized, rich graphics
•8u6 – smaller footprint, performance …
•Java ME Embedded 8
•ME->SE alignment, 128+ KB RAM, connectivity, security, tooling
•8.1 EA – ARM, Arduino, Gobi, Raspberry Pi support
www.hujak.hr
22

Mobile Innovation
•Java Card
•3B Java Cards deployed / year, SIM, security, NFC …
•RoboVM
•Native iOS apps in Java, open source
•Oracle Mobile Application Framework
•Cross platform mobile application development, simple extensible UI, Business Logic in Java
•Java for Trusted Execution Environments
•Security services in processors (smartphone), mobile apps and IoT security
www.hujak.hr
23

IoT Demo Car @JavaOne
www.hujak.hr
24

Duke Delorean
www.hujak.hr
25

The Road to Java
•History
•Present
•Future
www.hujak.hr
26

Java roadmap
www.hujak.hr
27
1995
1998
2001
2004
2007
2010
2013
2016
2019
Java SE 11
2019/20
Java SE 10
2017/18
2016
2014-3-18
Java EE 7
2013-6-12
HUJAK
2011-12-13
2011-7-28
Java EE 6
2009-12-10
Java SE 6 Mustang
2006-12-11
Java EE 5
2006-5-11
Java 5 J2SE 5.0 Tiger
2004-9-30
J2EE 1.4
2003-11-11
Java 1.4 J2SE 1.4 Merlin
2002-2-6
J2EE 1.3
2001-9-24
Java 1.3 J2SE 1.3 Kestrel
2000-5-8
J2EE 1.2
1999-12-12
Java 1.2 J2SE 1.2 Playground
1998-12-8
JPE Java Professional Edition
1998-5
Java 1.1 JDK 1.1
1997-2-19
Java 1 JDK 1.0 Oak
1996-1-23
Java JDK Alpha/Beta
1995
© 2014, HUJAK
2010-1-27
Java SE 8u40 2015-03 Perfomance Improvements Density & Resource Management Multi-Language Support Impr. Accessibility Enhancements Java SE Advanced Features
Java SE 8u60 2015-Q3
Java EE 8 GA
2016
JSON Binding, JAX-RS 2.1, JMS 2.1,
Servlet 4.0, MVC 1.0, JSF 2.3, JSON-P 1.1
Security 1.0, Management 2.0,
Java SE 9
Java SE 7 Dolphin
Java SE 8 Spider
Java EE 8
2016
Java EE 8 start 2014-9-22 JSR 366 begins …
Java SE 9 2016 Modularity (Jigsaw) HTTP 2.0 Lighweight JSON Cloud Optimized JVM Java SE Advanced Features Cont'd Ahead of Time Compilation

Java 9 – interest & features
•Interest in Java 9?
•Which Java 9 features?
www.hujak.hr
28
Zero 8%
Mild 32%
Average 32%
Strong 28%
Source: Java 8 Survey, Typesafe, October & October 2014
0%
10%
20%
30%
40%
50%
Nothing
Other
Declaration-Site Variance
Specialization
ClassDynamic
Project Jigsaw
Value Types
23%
5%
16%
18%
19%
43%
48%

What do we want in Java EE 8?
•Which API (JSR) should be included in Java EE 8?
www.hujak.hr
29
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
State Management API
Data Grid API
Identity API
Java EE Configuration
JCache
Java API for JSON Binding
37%
42%
47%
64%
68%
79%
51%
44%
43%
29%
26%
16%
12%
14%
10%
7%
6%
5%
YES
NOT SURE
NO
Source: Java EE 8 Community Survey, Oracle, 2014

Java EE 8 features
•Which features should be on Java EE 8?
www.hujak.hr
30
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Facelets as standard template engine
JavaScript API on the server (Avatar)
Templating framework
Client API fo Thin Server Architecture
MVC support (alongside JSF)
Java API for Server-sent events
37%
42%
44%
52%
61%
76%
35%
27%
25%
31%
20%
17%
28%
31%
31%
17%
19%
7%
YES
NOT SURE
NO
Source: Java EE 8 Community Survey, Oracle, 2014

The Road to Java EE 8
•Unanimously approved 
www.hujak.hr
31

What are we now really interested in?
•Which other JVM language would be most interesting to learn?
•Scala 47%
•What IDE would you rather use?
•IntelliJ IDEA Ultimate 49%
•What build tool would you like to learn?
•Gradle 58%
•What is your highest priority until 2015?
•Getting familiar with Java 8 35%
www.hujak.hr
32

Other JVM languages
•How about other JVM languages?
www.hujak.hr
33
0%
10%
20%
30%
40%
50%
All others
Clojure
Groovy
Scala
10%
12%
31%
47%
Including: Kotlin, Ceylon, Xtend …

The Road to Java
•History
•Present
•Future
•Something nice for the end
www.hujak.hr
34

Kids Day at JavaOne
www.hujak.hr
36

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