javase - the road forward

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Java SE – The road forward, 2011 editionDalibor TopićJava F/OSS Ambassador

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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.

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Agenda

• Past• Present• Future

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Past

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Apples and Pears

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Language

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Working In Java

http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html

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Working In Java

http://www.ohloh.net/languages/compare?measure=projects&percent=true&l0=csharp&l1=erlang&l2=java&l3=php&l4=python&l5=ruby&l6=scala&l7=groovy&commit=Update

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Work in Java

http://www.indeed.com/jobtrends?q=java%2Cc%23%2Cpython%2Cruby%2Cperl%2Cscala%2C+erlang%2C+groovy&l=

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2000

200920062002

JRockit products

• Complete insight into application & JVM behavior

• Zero performance overhead in production environments

• No application modification or configuration required

JROCKIT MISSION CONTROL

• High-performance real-time solution for standard Java

• Industry leading Deterministic Garbage Collector

• Millisecond response times with “five nines” guarantee

• Improve application performance & latency with unique tooling

JROCKIT REAL TIME

• Fly-weight Java container for virtualized environments

• Improve datacenter efficiency - do more with less

• Simpler and more powerful VM management

JROCKIT VIRTUAL EDITION

• Server-side focus• World-class performance• Powerful diagnostics

JROCKIT JVM

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Java SWOT – Sun days

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Present

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What occupies our days?

• Dev– Java 7– JDK 7– Convergence

• “Misc”– Reconnecting with community– Java 8– Java 9+

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JDK 7 / Java 7

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2 teams enter, one team leave…

• Hotspot

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2010 Eclipse Community survey

69,8 + 21.7%vs4.6%

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2 teams enter, one team leave…

• Hotspot– Market share

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2 teams enter, one team leave…

• Hotspot– Market share– Client and Server version– Quality

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2 teams enter, one team leave…

• Hotspot– Market share– Client and Server version– Quality

• JRockit– Value adds• JRockit Mission Control• JRockit Flight Recorder• JRockit Virtual Edition

– Optimized for the Oracle stack

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2020

Hmm…

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Convergence

1 + 1 = 3 ?

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Convergence

JRockit Hotspot

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Convergence

HotRockit

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How big was your first checkin?

• +++ b/src/share/vm/utilities/top.hpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/utf8.cpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/utf8.hpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/vmError.cpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/vmError.hpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/workgroup.cpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/workgroup.hpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/xmlstream.cpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/xmlstream.hpp Wed Feb 02 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/yieldingWorkgroup.cpp Wed Feb 02

• 13:23:17 2011 +0100

• +++ b/src/share/vm/utilities/yieldingWorkgroup.hpp Wed Feb 02

• 13:23:17 2011 +0100

• [ stefank @ stefank02 : 13:23:38 : 1034 ] ~/hg/perm.objarray $ less apa2.txt | grep "+++" | wc

• 1652 13216 126612

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Official roadmap, from JavaOne 2010

• JDK 7 – 2011• JDK 8 – 2012• Open JDK unchanged• JVM Merge -> Open JDK• JDK/JRE still free, same license• Premium – (Such as: JFR, JRMC, JFB, Support)

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Java SWOT – Oracle

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Future

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Trends

• Multi Core processors• Dynamic Languages• Domain specific Languages• Cloud• Smart phones and tablets

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