trends and future of java

Trends and future of Java

Recap from JavaOne 2014By Csaba Toth

Central California Java User Group11/14/2014

Location: Bitwise Industries

• JavaOne 2014 recap

• Java 8 new features

• Java 9 features

• JCP elections

JavaOne 2014• JavaOne + OracleWorld: one week conference at

the end of September, beginning of October• OracleWorld – mostly IT and infrastructure,

licensing. Oracle has their own user groups occupies all the Moscone Centers, including two streets in between them

• JavaOne – everything about software development

JavaOne 2014

• Keynotes: https://www.oracle.com/javaone/keynotes/index.html

• JavaOne keynote, technical keynote, community keynote

JavaOne

• Conference itself is improving

• Community (JUGs for example) get more and more role

• Updates on Java

– Java SE 8 and Java ME 8 came out, Java EE is following

JavaOne: IoT and Cloud

• Cloud and the Internet of things was again a big topics and making Java the platform of choice. IBM demonstrated how they were trying to make implementing Java on the cloud simpler and commented on how 250 gig heaps were now entirely possible.

JavaOne Demo

• One of the main demos: something using the whole range of Java features.

• Built the front panel for a car, complete with pedals, displays, steering wheel and display, all powered by Java.

JavaOne: JavaEE 8 and further• Leveraging features new to Java 8: Nashorn, Lambdas / Method handles,

Built-in interfaces, Streams, Concurrency, JavaFX, Tooling/Deployment• SON-Binding and JCache specifications will be part of the Java EE 8

standard• MVC 1.0 will allow to add service endpoints to properly support abilities

to AngularJS and Backbone JS functionality• upgrading the Servlet 4 to HTTP 2.0 standard• interceptors and events in CDI 2.0• harmonising dependency injection approach in the sub specifications like

JAX-RS and WebSocket• adding cloud specific configuration

JavaOne: JavaFX• Java is used by NASA, developers presented from

Vandenberg Airforce Base• They use numerous Java applications, most of

which extend NetBeans IDE itself as a platform• NASA requires tedious reuirements for safety and

reliability• They still try to use cutting edge technology

whenever possible

JavaOne: NASA close to us!

• NASA JavaFX application for satellite trajectory analyzation:

JavaFX, JavaFX 3D

• E(fx)clipse: Eclipse IDE derivate utilizing JavaFX

• Thomas Schindl’s presentation

– RIA RCP development with E(fx)clipse

– JavaFX, JavaFX 3D, ease of use

– Beautiful architecture, OSGI services

Java on mobile platforms• RoboVM: Henric Mueller and Niklas Therning• Duke’s choice award winners also• iOS – yes, supported• current toolkit is based on Eclipse toolchain and Maven• Will get major support from Oracle!• At this moment does not support JavaFX media or JavaFX

3D• workaround to access OpenGL and media video and audio

features using the CocoaTouch bridge

Java on small and embedded

• Besides Java SE 8 and ME 8, there’s Java SE 8 embedded and ME 8 embedded tailored to embedded platforms!

• Example hands-on lab used Raspberry Pi and thermal sensor

JavaOne: the language

• Value Types: upcoming feature– http://cr.openjdk.java.net/~jrose/values/values-

0.html

– Increasing efficiency!

– Example: speed of traversing an array• As Herb Sutter pointed out earlier in C++ conference: it

hugely matters how the data is laid out! Slow down with magnitudes!

Value Types

Herb

Sutter’s

Slide

(C++):

Java/JDK 8 main features

1. Lambda expressions and method references

2. Default methods

3. Streams

4. JavaScript on JVM: Nashorn

5. New date/time APIs

https://leanpub.com/whatsnewinjava8/read

Java 8: Lambda expressions• Lambda expressions: enable you to treat

functionality as a method argument, or code as data. Lambda expressions let you express instances of single-method interfaces (referred to as functional interfaces) more compactly.

• Method references provide easy-to-read lambda expressions for methods that already have a name.

Java 9

• Focused on Project Jigsaw: Modularizing the JDK

• http://openjdk.java.net/projects/jigsaw/doc/jdk-modularization.html

• scale down, improve security, evolve more easily, improve startup performance, and scale up to large systems

Project Jigsaw

Java 9 parallelism• Java 8 brings stream APIs• Project Sumatra: utilize GPUs for computation if

available: GPGPU (General Purpose GPU)• Industry-wide movement: HSA, HSAIL• Links:

– http://www.oracle.com/technetwork/java/jvmls2013caspole-2013527.pdf

– http://openjdk.java.net/projects/sumatra/

JCP elections• Java will be 20 years old in 2015• JCP celebrates 15th anniversary!!!• https://jcp.org/aboutJava/communityprocess/elections

/2014-nominees.html• Martijn Verburg on behalf of LJC (London Java

Community) JCP committee: http://londonjavacommunity.wordpress.com/2014/11/04/public-endorsements-for-the-2014-jcp-elections-java-standards-body/

JCP Election Nominees,Ratified Seat Vote

Freescale, Gemalto M2M GmbH, Goldman Sachs, MicroDoc, SAP, Software AG, TOTVS, V2COM

1. Strength in the emerging IoT market (Gemalto, Freescale and MicroDoc)

2. The increasing importance of the BRIC economies on the ecosystem (TOTOVS and V2COM)

3. The massive impacts on SE and EE platforms today (SAP, Software AG and Goldman Sachs).

JCP Election Nominees,Open Seat Vote

• Azul Systems• ARM Systems• Hazelcast• Waratek• Morocco JUG• Geir Magnusson Jr• Lots of worthy other candidates: Jelastic, TimeSys,

Werner Keil, Karan Singh Malhi, Vladimir Safonov

JCP elections

• Plans for Central California JUG:

– CCJUG will join JCP

– We can vote next year

– We’ll have a voting and discussion in our JUG, and we’ll cast our vote according to a majority decision

Podcasts:

• Java Pub House: http://www.javapubhouse.com/– Tematic tutorials, really good!

– Freddy Guime (Lambda Expressions band)

• Java Posse: http://javaposse.com/– Four experts

– News or recording of a conference

Thanks to

• Peter Pilgrim for some of the photos and his recap

• Martijn Verburg for the JCP election help

• All linked material’s authors

Thank you!

• Questions?