the forces driving java

Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 1

The Forces Driving Java

Steve Elliott Oracle UK November 2012


The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.


The Highlander Fallacy

“There can be only one”


The Highlander Fallacy

“This, of course, is a classic example of what I have called the Highlander Fallacy, which briefly stated is the principle that there can be only one. If any two technologies can be described using the same set of words, then there is no need for both of them, and only one will survive. I call this a fallacy because, to use a technical term, it is total crap.”

Jim Waldo http://blogs.law.harvard.edu/waldo

“There can be only one”


“If someone claims to have the perfect programming language, he is either a fool, a salesman or both” “There are only two kinds of programming languages : those people complain about and those nobody uses” “ How do you pronounce ‘Bjarne Stroustrup’ ? It can be difficult for non-Scandinavians. The best suggestion I heard yet was “start by saying it a few times in Norwegian then stuff a potato down your throat and do it again” J

Bjarne Stroustup


"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the universe trying to build bigger and better idiots. So far, the universe is winning." - Rick Cook


http://www.junauza.com/2010/12/top-50-programming-quotes-of-all-time.html


C

Cloud

Cloud

Cloud

Embedded Mobile Devices

Developer Tools CI DevOps

Concurrency Threads

JVM

Language Evolution Polyglot Programming

Performance Monitoring Management Tuning

Big Data NoSQL Modularity

Deployment

Web Technologies User

Interface

Community Governance Open Source

Hardware Evolution

Multi-tenancy


Hardware Evolution

§ Pipelining, Superscalar, OoO execution… § Multi Core, Hyperthreading, Crypto… § Caches, Memory Hierarchy / Disk / SSD… § GPU processing § Networking § etc etc etc


Hardware Evolution

§  Herb Sutter –  The free lunch is over –  Welcome to the jungle

§  Jason Robert Carey Patterson –  Modern Microprocessors – A 90 minute guide

§  Ulrich Drepper –  What every programmer should know about memory

§  Cliff Click –  A crash course in modern hardware

§  Martin Thompson (Mechanical Sympathy), Peter Lawrey, Kirk Pepperdine, Jevgeni Kabanov (Do you really get memory?) and many more…

Know your system


Why Lambdas for Java?


Language Evolution / Polyglot Programming


Influences on Java (née GreenTalk/Oak : 1991-92)

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12

Fortran

LISP

Clojure

Pascal (p-code)

Perl

C

PL/M Smalltalk

Java

occam

BASIC

Ruby

Scala

Coral

Algol

Ada

BCPL

Forth

Simula Modula

C++ Scheme

Objective C

Erlang

Haskell Python

http://en.wikipedia.org/wiki/Timeline_of_programming_languages http://hopl.murdoch.edu.au/

VB

PHP

Groovy

LiveScript/JavaScript

Dart

Go

Mesa Cedar

B

Self (Hotspot)

Kotlin

Ceylon

Fantom

TypeScript


The Da Vinci Machine Project Polyglot Programming

Nashorn Ceylon

Seph

Virtual Machine InvokeDynamic


Project Nashorn


Performance

§  JVM § Throughput / Latency § Monitoring / Instrumentation § Tuning § …


G1 – Garbage First

§ Supported for production use since 7u4 § Large heaps with GC latency requirements

–  Typically ~6GB or larger heaps –  Stable and predictable GC latencies below 0.5 seconds

§ Applications that have –  more than 50% live data on the heap –  varied object allocation rate –  undesired long GC or compaction pauses (greater than 0.5s)

Recommended Use Cases


Performance Features

§ Partial Permanent Generation removal in JDK 7 –  Interned Strings moved to Java heap

§ First step: Full removal in JDK 8 § My be necessary to adjust GC tuning

–  Interned Strings now in heap –  Applications with high GC time –  Applications with high interned String count –  Larger heap size may be needed

HotSpot JVM: Partial Perm Gen Removal


Java Diagnostic Commands

§ Complete tool chain –  Framework for easy implementation and integration –  Command line tool, jcmd

§  jcmd –  List running Java processes

§  jcmd <pid> help –  List all available commands, currently ~15 different commands

JDK Introspection


Modularity / Deployment

§ Modules –  Jigsaw –  OSGi –  Project Penrose

§ Deployment –  Enterprise, Web, App Store model

§ Build Systems / CI / Devops… –  Maven, Gradle, Hudson etc


UI / Web

§  JavaFX § Websocket / JSON (Java EE) § HTML5 § Mobile


JavaFX Update

JavaFX 2.2 for Linux Scene Builder 1.0

Linux Developer Preview

JavaFX 2.1 for OS X

OpenJFX project created

Dec 11

NetBeans 7.2 with FX 2.1 and Scene Builder integration

Linux/ARM Dev Preview Scene Builder Linux Dev Preview

Jan 12 Apr 12 Aug 12


Avatar

•  Applications based on Thin Server Architecture •  Incubator for HTML5/JavaScript clients with Java EE

–  Learn by experimenting –  Identify targets for standardization, e.g. WebSocket (now), Server-

Sent Event (Future)

•  End-to-end framework: Client and Server – A-la-carte, not all or nothing


Introducing Project Easel – Advanced Tooling for HTML 5

•  Provides the foundation for tooling support for Project Avatar.

•  Consume Java EE based services with today’s popular JavaScript frameworks


Java EE

JPA JAX-RS

SSE WebSocket

EL . . .

Angry Bids Demo

Auction Items

HTM

L5 Server

Infrastructure

Live Bid

Chat

HTTP restModel

Server-Sent Event pushModel

WebSocket socketModel

Database


http://spoofzu.blogspot.co.uk


http://www.oracle.com/technetwork/java/seccodeguide-139067.html


Roadmaps


JDK 8 Java for Everyone •  Profiles for constrained devices •  JSR 310 - Date & Time APIs •  Non-Gregorian calendars •  Unicode 6.1 •  ResourceBundle. •  BCP47 locale matching •  Globalization & Accessibility

Innovation •  Lambda aka Closures •  Language Interop •  Nashorn

Core Libraries •  Parallel operations for core

collections APIs •  Improvements in functionality •  Improved type inference

Security •  Limited doPrivilege •  NSA Suite B algorithm support •  SNI Server Side support •  DSA updated to FIPS186-3 •  AEAD JSSE CipherSuites

Tools •  Compiler control & logging •  JSR 308 - Annotations on

Java Type •  Native app bundling •  App Store Bundling tools

Client •  Deployment enhancements •  JavaFX 8 •  Public UI Control API •  Java SE Embedded support •  Enhanced HTML5 support •  3D shapes and attributes •  Printing

General Goodness •  JVM enhancements •  No PermGen limitations •  Performance lmprovements


JavaFX 2.2 and Beyond

Multi-Touch Mac

Scene Builder Advanced Cells

1080p Embedded

Performance

Rich Text

ComboBox

HTTP Live Streaming

Pagination

3D Native Deployment

h.264

Snapshot Canvas

Writeable Image

ColorPicker

i18n

Linux Printing

Accessibility 3rd Party Controls

SWT for Linux

ARM

Complex Text

SwingNode


To Java SE 9 and Beyond!

Jigsaw

Cloud

Ease of use Optimizations Generic Lang Interoperability

Penrose

OpenJFX Project Sumatra – Java for GPUs

Ports: Power PC/AIX

Multi-Tenancy Support

Self Tuning JVM

Improved Integration with Native

Resource Management Lang Enhancements

Unified Type System Data Structure Optimizations


Roadmap Java SE

2015 2012 2013 2014

7u6 •  JRE on Mac complete •  JavaFX 2.2 integration •  Linux ARM V6/V7 •  JavaFX on Mac and Linux

JDK 8 •  Lambda •  Complete JVM Convergence •  JavaScript Interop •  JavaFX 8

–  Public UI Control API –  Java SE Embedded support –  Enhanced HTML5 support

NetBeans IDE 7.2 •  Support for JDK 7 on Mac •  Support for JavaFX on

Mac and Linux

Scene Builder 1.0 •  Windows and Mac

Major Serviceability improvements •  Java Flight Recorder in JDK •  Native memory tracking •  Java Discovery Protocol •  App Stores Packaging tools •  Last Public Release of JDK 6

JDK 9 •  Jigsaw •  Interoperability •  Optimizations •  Cloud •  Ease of Use •  JavaFX JSR

NetBeans IDE 7.3 •  Scene Builder 1.1 support

Scene Builder 1.1 •  Linux support

NetBeans IDE 8 •  JDK 8 support •  Scene Builder 2.0 support

Scene Builder 2.0 •  JavaFX 8 support •  Enhanced Java IDE support

NetBeans IDE 9 •  JDK 9 support •  Scene Builder 3.0 support

SceneBuilder 3.0 •  JavaFX 9 support


Roadmap Embedded Java

2015 2012 2013 2014

Java Embedded Suite 7 •  SE Embedded 7 •  GlassFish for Embedded •  Java DB

Java SE Embedded 8 •  Complete JVM convergence •  Additional compact profiles •  JavaFX for Embedded

Java Embedded Suite 8 •  Additional enterprise middleware integrations

•  Flight Recorder/Mission Control

Java ME Embedded 3.2 •  Microcontroller support •  Device Access APIs

Java ME SDK 3.2 •  Embedded emulator •  Eclipse integration

Java Embedded Suite 7.1 •  Sync with latest JDK and

GlassFish •  Optimizations and additional

platform support

Java Embedded 9 •  JDK9 •  Modularity based on

Jigsaw •  Additional Embedded

device APIs •  Ease of Development

Java ME Embedded 3.3 •  Enhanced device access •  Footprint optimization &

configuration tools •  Improved developer

tooling & experience

Java ME Embedded 8 •  Java ME 8 •  Standardized Embedded API •  New on-device debugging

architecture NetBeans IDE 8 •  Java ME/SE 8 Embedded

support

NetBeans IDE 7.2 •  ME Embedded support

NetBeans IDE 9 •  Java ME/SE 9

Embedded support •  Jigsaw support


Java EE Past, Present, & Future

May 1998

Enterprise Java Platform

Dec 1999 10 specs

Robustness

Sep 20110 13 specs

Web Services

Nov 2003 20 specs

Ease of Development

May 2006 23 specs

Lightweight

Dec 2009 28 specs

Simplicity & HTML5

Q2 2013 33+ specs

JPE Project

J2EE 1.3 CMP, Connector Architecture

Java EE 5 Ease of Development, Annotations, EJB 3.0, JPA, JSF, Updated Web Services

J2EE 1.4 Web Services Mgmt, Deployment, Async Connector

Java EE 6 Pruning, Extensibility Ease of Dev, CDI, JAX-RS

Web Profile

Servlet 3.0, EJB 3.1 Lite

Java EE 7 JMS 2.0, Batch, JCache, TX Interceptors HTML5: WebSocket, JSON

Web Profile

JAX-RS 2.0

J2EE 1.2 Servlet, JSP, EJB, JMS RMI/IIOP


Java EE 7 – Candidate JSRs

Connector 1.6

Managed Beans 1.0 EJB 3.2

Servlet 3.1

Portable Extensions

JSF 2.2 JAX-RS 2.0

Bea

n Va

lidat

ion

1.1

JMS 2.0 JPA 2.1

EL 3.0

JTA 1.2

JSP 2.2

Interceptors 1.1 CDI 1.1 Common Annotations 1.1

Updated Major Release

New

Java Caching API (JSR 107)

Batch Applications (JSR 352)

Java API for JSON (JSR 353)

Java API for WebSocket (JSR 356)


Connector 1.6

Managed Beans 1.0 EJB 3.2

Servlet 3.1

Portable Extensions

JSF 2.2 JAX-RS 2.0

Bea

n Va

lidat

ion

1.1

JMS 2.0 JPA 2.1

EL 3.0

JTA 1.2

JSP 2.2

Interceptors 1.1 CDI 1.1 Common Annotations 1.1

Java Caching API (JSR 107)

Batch Applications (JSR 352)

Java API for JSON (JSR 353)

Java API for WebSocket (JSR 356)

Java EE 7 – Specification Status

✔ Early/Public Drafts Available

✔

✔

✔ ✔ ✔

✔

✔

✔

✔ ✔

✔

✔


4.0 Java EE 7 – Implementation Status

download.java.net/glassfish/4.0/promoted/


Java EE 8 and beyond

§ Deliver cloud architecture

§ Multi tenancy for SaaS applications

§  Incremental delivery of JSRs

§ Modularity based on Jigsaw (SE 9)

Standards-based cloud programming model

Java EE 7

PaaS Enablement

Multi- tenancy

NoSQL

JSON-B

State Management Avatar

Concurrency

Storage


References § Herb Sutter

–  http://www.gotw.ca/publications/concurrency-ddj.htm –  http://herbsutter.com/welcome-to-the-jungle

§  Jason Robert Carey Patterson –  http://www.lighterra.com/papers/modernmicroprocessors

§ Ulrich Drepper –  http://lwn.net/Articles/250967

§ Cliff Click –  http://www.infoq.com/presentations/click-crash-course-modern-hardware

§  James Gosling –  http://dl.acm.org/citation.cfm?id=620728


Acknowledgments § Much of the content of this presentation is taken from various

JavaOne and Oracle OpenWorld 2012 slide decks. § Thanks to..

Hasan Rizvi, Georges Saab, Henrik Stahl, Nandini Ramani, Cameron Purdy, Mark Reinhold, Brian Goetz, Richard Bair, ArunGupta, Simon Ritter, Tomas Nilsson, Marcus Lagergren, Marcus Hirt, Staffan Friberg, David Keenan, Scott Kovatch, John Clingan, John Rose, Milton Smith, Joe Darcy, Stuart Marks…and anybody else I missed.

§ Thanks also.. –  James Gosling – ‘The Feel of Java’ and a lot more J –  John Rose / JVM Languages Summit – ‘Vitruvian Duke’ graphic –  Jim Waldo – ‘Highlander Fallacy’ reference –  Bjarne Stroustup - quotes –  http://www.junauza.com/2010/12/top-50-programming-quotes-of-all-time.html

the forces driving java

Technology

oracle andor

etc10 copyright

eduwaldo5 copyright

one4 copyright

au17 copyright

more11 copyright

projectnashorn20 copyright

oracle s products