JavaOne 2014

Create the Future

   @MarkStoetzer

             & @brampatelski

Java is the future

Technologies

The future is Java

Trends

JAVA ME / ME embedded

Java SE embedded

  • SE embedded 8 release in 2015
  • Update release at end of year

Java SE

  • Java SE 9 release planned for 2016
  • Contains JigSaw

Mobile

Community

Embedded

Future java developers

Devoxx4Kids

&

First

Java Related Tools

Agile

Internet of Things

Evolutionary architecture

Modularity

Performance

Evil / Agile skills

Agile

Evolutionary architecture

Evolutionary

 

vs.

 

Emergent

Agile

Evolutionary architecture

Last responsible moment

Agile

Evolutionary architecture

Architect and develop for evolvability:

  • Ease of change
  • Coupling 
  • Lightweight documentation
  • Continuous effort

Agile

Evolutionary architecture

Be conservative in what you send

and liberal in what you receive

Agile

Postel's law

Evolutionary architecture

Architect for testability

Agile

  • System knowledge
  • Business sensible components
  • Testing at many levels

Evolutionary architecture

Agile

Evolutionary architecture

  • Database refactoring 
  • Continuous delivery 
  • Choreography 
  • Contract testing

Agile

Techniques

Modularity

Jigsaw:

Delayed to JDK9

Agile

Modularity

OSGi

Eclipse & BndTools for OSGi

Apache Felix OSGi impl.

Amdatu, HTML5, AngularJS, RabbitMQ, JPA

Agile

Performance is a Social activity

Performance problems

  • Outage
  • User experience degradation

 

 

Agile

Or is it?

Performance is a Social activity

  • Risk reduction
  • Improve reliability
  • Increase maintainability
  • Quantifyable impact

Agile

Performance tests

Performance is a Social activity

UAT is my desktop

Agile

Performance is a Social activity

Production-like data is too hard

Comparing apples with pears

Agile

Evolutionary architecture

  • Advice from Internet is not useful
  • Default is good enough

Agile

Tuning by folklore

Performance is a Social activity

Throw over the wall mentality

Agile

Performance is a Social activity

Blame donkey

Agile

Performance is a Social activity

  1. Test
  2. Measure 
  3. Analyze
  4. Discuss 
  5. Proceed from step 1

Agile

Guideline

Agile learning

Failing:

Who's fault is it?

-----------------------

What did we learn?

Should we change something?

Learning:

Cross-team Guilds

Workshops

Presentations

Monthly open-space day

Breakfast presentations

Lunch presentations

Code review

Agile

Evil / Agile skills

Invest

Agile

Workshops

Monthly open-space day

Lunch presentations

Evil / Agile skills

Invest

Listen

Agile

Evil / Agile skills

Invest

Listen

Empathy

Agile

Evil / Agile skills

Invest

Listen

Empathy

Adapt

Agile

Failing:

Who's fault is it?

-----------------------

What did we learn?

Should we change something?

Go fast, fail often

Evil / Agile skills

Invest

Listen

Empathy

Adapt

Coach

Agile

Code review

Evil / Agile skills

Invest

Listen

Empathy

Adapt

Coach

Assertiveness

Agile

Evil / Agile skills

Invest

Listen

Empathy

Adapt

Coach

Assertiveness

Creativity

Agile

Java

Related

Tools

JDK8

GS Collections

Oracle MAF

Checker framework

Groovy

Avatar.js

TypeScript

Vert.x

IDE's comparison

OWASP ZAP

CI / CD

Java PaaS

Java

Related

Tools

JDK8 / Streams

// applying 12% VAT on each purchase
// Without Lambda expressions:
List costBeforeTax = Arrays.asList(100, 200, 300, 400, 500);
for (Integer cost : costBeforeTax) {
	double price = cost + .12*cost;
	System.out.println(price);
}
// With Lambda expressions:
List costBeforeTax = Arrays.asList(100, 200, 300, 400, 500);
costBeforeTax.stream().map((cost) -> cost + .12*cost).forEach(System.out::println);

Java

JDK8 / Lambda

Related

Tools

.onAction(new EventHandler<ActionEvent>() {
    @Override 
    public void handle(ActionEvent e) {
        anim.playFromStart(); 
    }
})
.onAction((ActionEvent) -> { anim.playFromStart(); })
.onAction((e) -> { anim.playFromStart(); })
.onAction(e -> anim.playFromStart(); )

Java

GS Collections

Related

Tools

Java

GS Collections

Related

Tools

  • No Entry
    • Watch out for entrySet()
      • creates a lot of objects
    • Use forEachKeyValue()

Memory efficient Set and Map

Java

Oracle MAF

Related

Tools

Mobile dev. dilemma:

Native vs Web?

Java

Oracle MAF

Related

Tools

80+ components

XML format

Visual development

Declarative data binding

Rendering HTML5 / JavaScript

Theming through CSS

Native user exp

 & AMX

Java

Oracle MAF & AMX

Related

Tools

Drag-n-drop development

 

  • per user
  • per instance / app

Supported by JDeveloper and Eclipse

Use native mobile features

Completely free to develop and test

www.oracle.com/maf

No other Oracle products needed

Licensing for prod-env

Java

Checker framework

Related

Tools

Java

Checker framework

Related

Tools

Java

Checker framework

Related

Tools

Dynamic checks

if (x != null) {
  x.hashCode();
}

if (!RegexUtil.isRegex(userInput)) {
  throw new RuntimeException(...);
}
Pattern p = Pattern.compile(userInput);

Java

Checker framework

Related

Tools

 Java 6 & 7 compatible

Annotations in comments

List</* @NonNull */ String> strings;

Voodoo comments for arbitrary source code

/* >>> import myquals.TRecv; */
....
  int foo(/*>>> @TRecv MyClass this, */
          @TParam String p) { ... }

Java

Related

Tools

Groovy / Metaprogramming

== file:///scores.dsl ==
players ‘Ben’, ‘George’, ‘Abe’
George 10
Ben 12
Abe 9
reportWinner
scores[:] // Create an empty Map

Java

Related

Tools

Groovy / Metaprogramming

def players(String[] names) {
   names.each{ name ->
       scores[name] = 0
   }
}
== file:///scores.dsl ==
players ‘Ben’, ‘George’, ‘Abe’
George 10
Ben 12
Abe 9
reportWinner

Java

Related

Tools

Groovy / Metaprogramming

def methodMissing(String name, args) {
   scores[name] = args[0]
}
== file:///scores.dsl ==
players ‘Ben’, ‘George’, ‘Abe’
George 10
Ben 12
Abe 9
reportWinner

Java

Related

Tools

Groovy / Metaprogramming

def getReportWinner() {
 def max = -1
 def winner = ''
 scores.each { name, score ->
   if (score > max) {
     max = score
     winner = name
   }
 }
 "winner is $winner with score $max"
}
winner is Ben with score 12
== file:///scores.dsl ==
players ‘Ben’, ‘George’, ‘Abe’
George 10
Ben 12
Abe 9
reportWinner

Java

Related

Tools

Groovy in 2014 and beyond

Groovy 2.3

Closures ~ Lambda's

trait FlyingAbility {
    String fly() {"I'm flying!"}
}

class Bird implements FlyingAbility {}
def b = new Bird()

assert b.fly() == "I'm flying!"

Traits ~ interface default methods

AST
NIO2
JSON parser
Template engine

Docs / www.groovy-lang.org

Java

Related

Tools

Groovy in 2014 and beyond

Groovy 2.4:

Full-blown support for Android

Antlr4 support

Java

Tools

Avatar.JS

Related

Java

Tools

Avatar.JS

Related

  • Asynchronous
  • Event driven
  • Non blocking
  • Single threaded

Java

Tools

Avatar.JS

Related

Java

Tools

TypeScript

Related

M$ opensource

Type-system

Optional

100% JavaScript

Step by step adoption

Java

Tools

Vert.x

Related

inspired by Node.js

Java

Tools

Vert.x

Related

Java

Tools

Vert.x

Related

  • Server
  • Maximize CPU usage
  • High availability

Java

Tools

Vert.x

Related

Version 3

  • Java 8 only
  • Nashorn
  • Runtime metrics
  • Distributed data

Java

Tools

IDE's

Related

Java

Tools

OWASP ZAP

Related

Java

Tools

OWASP ZAP

Related

  • Easy to use pentest tool
  • Free and opensource
  • Useful for devs and professionals
  • Automated security tests

What can it give you?

Java

Tools

Related

  • Pages to ignore (logout, duplicates)
  • Anti CSRF tokens
  • Session handling
  • Authentication
  • Users
  • Non standard data

OWASP ZAP

Tuning

Java

Tools

CI / CD - The deployment factory

Related

Deploy is scary -> Delay

Dependency mgt

Version stability

Delivery

Identical env: Chef, Vagrant, Docker

Automation

People

Java

Tools

Java PaaS

Related

Java

Tools

Java PaaS

Related

Java

Tools

Java PaaS

Related

Continuous delivery

Java

Tools

Java PaaS

Related

Shared goal: agility

Java

Tools

Java PaaS

Related

  • Puppet
  • Chef
  • Docker
  • Etc.

Configuration as code

Java

Tools

Java PaaS

Related

  • Cloudbees
  • Openshift
  • Oracle
  • Heroku

Public PaaS

Java

Tools

Java PaaS

Related

  • Apprenda
  • Stackato
  • Stratalux
  • Jelastic

Private PaaS

Java

Tools

Java PaaS

Related

  • Vagrant
  • AWS opsworks
  • VisualOps 
  • Jelastic
  • Skytap

Promising

Java

Tools

Java PaaS

Related

  • Features
  • Technology stack
  • Security and compliance
  • Infrastructure
  • Extensibility

Choose a PaaS

Internet

Things

Future Smart home

Java Smart car

Current Smart home

Wearables

Java robots with ROS

FIRST

How to talk to your house

Internet

Things

How to talk to your house

Internet

Things

Java Smart car @keynote

Internet

Things

Java Smart car @keynote

Internet

Things

Warp speed !!

Smart home for masses

Internet

Things

Smart home Standards

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Nowadays:

  • Lots of devices available
  • Devices with predefined features
  • No Real standard
  • Hard to combine products

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Internet

Things

Wearables

Java Robots & ROS

Internet

Things

Controlling Robots

 

Using Blender

Juggie

Java Robots & ROS

Internet

Things

ROS

  • Message bus
    • Publish subscribe
    • RPC
  • Platform unaware
  • Parameter service
  • Concepts: JMS and JNDI

Java Robots & ROS

Internet

Things

(cool) Open source libraries

  • CMU Sphynx
  • OpenDial
  • Faceshift

Java Robots & ROS

Internet

Things

Challenges:

  • Establish build tools
  • RaspBerry Pi and ROS
    • Not well documented
    • Communicating between C++ and java is tricky

Internet

Things

Impressions

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