the irresistible charms of java

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The Irresistible Charms of

Ashish Belagali,http://10Xofy.comTwitter: @10Xofy

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AgendaAgenda

Java popularity

History of Java

Technology

Strategy blunders

Frameworks & tech stacks

All pervasiveness

Attackers

Critiques n Myths

Technology charms

Business charms

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Java still #1 – May 2017Java still #1 – May 2017

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HistoryHistory

1991 – Green team at Sun led by James Gosling JDK Alpha and Beta (1995) JDK 1.0 (23rd Jan, 1996) JDK 1.1 (19th Feb, 1997) J2SE 1.2 (8th Dec, 1998) J2SE 1.3 (8th May, 2000) J2SE 1.4 (6th Feb, 2002) J2SE 5.0 (30th Sep, 2004) Java SE 6 (11th Dec, 2006) Sun acquired by Oracle (27th Jan, 2010) Java SE 7 (28th July, 2011) Java SE 8 (18th March, 2014)

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TechnologyTechnology

10101010src

10101010

src

src

(1) Compiled

(2) Interpreted

(3) Compiled, then Interpreted

Java Virtual Machine (JVM) technology WORA – Write Once, Run Anywhere Better than WOCA Optimizing resource utilization, security Backward compatibility

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Strategy Blunder - 1Strategy Blunder - 1

Focus on hardware, ignore software

Sun did not make money on Java, others did.

Owned specs, not product. Sun played big brother –

open sourced, first partially, then completely.

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Craftsmanship ignored initially Examples

Java UI Performance Templates, method properties,

lambda expressions Ended up losing developers

and then playing catch-up, as market forced them

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Go after foes and friends too – compete and include everything

Examples CORBA – RMI Spring – EJB3 Eclipse – Netbeans Tomcat/Jboss – Glassfish

Made framework vendors insecure.

Lost money. Made developers happy?

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33rdrd Party Frameworks Party Frameworks

Sun stopped playing a leadership role in Java long ago. Talented 3rd party developers who made brilliant frameworks, adopted Java for interesting uses.

IBM Eclipse, IntelliJ, Google Android, JRebel

Image attributions: Matt Raible on Flickr

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Impressive Technology StacksImpressive Technology Stacks

JEE Spring Play Spark...

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All PervasiveAll Pervasive

Image attributions: (1) Nimbuzz on Flickr (2) Command827~commonswiki

Mobile Web(HTML & Rich client)

Desktop(AWT, Swing,

SWT, Webstart)

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Technology CharmsTechnology Charms

Richest ecosystem of frameworks Mature, enterprise-ready, proven technology Robust, prevents memory leaks and uses

static typing => developers cannot shoot themselves in the foot

Highly secure and scalable

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Business CharmsBusiness Charms

Java developers are trained in object orientation

#1 programming language, Huge community support => help available if stuck

Huge supply of Java developers => expect available throughout life of software

Backward compatibility => Old programs don’t break on newer Java release