Here is my case: 'JVM will outlive Java'. As an Engineer what you can do to capitalize on this opportunity?

1. Why JVM will outlive Java?
Hardware Architecture
Java Application
JVM
Operation System
Ram Lakshmanan
www.linkedin.com/in/ramlakshman/

2. What is Java? What is JVM?
•Java –programming language
•JVM -Translates the Java program into instructions and commands that run on the local operating system.
Hardware Architecture
Java Application
JVM
Operation System

3. Java & JVM
A.java
Java Compiler
(javac)
A.class
(OS specific) JVM
Build Time
Run Time

4. Write Once, Run Anywhere –Promise
Hardware Architecture x
Java Application
(OS-1) JVM
Operation System 1
Hardware Architecture y
Java Application
(OS-n) JVM
Operation System n
Just because of JVM

5. Ready for a Surprise?
•JVM knows nothing of the Java programming language
•It just knows of a particular binary format, the class file format.
Hardware Architecture
Java Application
JVM
Operation System
As long as you pass specified class
format, JVM can execute it.
A.java
Java Compiler
(javac)
A.class
(OS specific) JVM
A.scala
Scala Compiler
(scalac)
A.xyz
XYZ Compiler

6. Languages that run on JVM
clojure
Language
Java implementations
Ada
JGNAT
BBx
BBjis a superset ofBBx, PRO/5, and Visual PRO/5.
C
C to Java Virtual Machine compilers[2]
CFML
Adobe ColdFusionRailoOpen BlueDragon
Common Lisp
Armed Bear Common Lisp[3] CLforJava
JavaScript
RhinoNashorn
Pascal
Free PascalMIDletPascalOxygene
Perl 6
Rakudo Perl 6
Prolog
JIPrologTuProlog
Python
Jython
REXX
NetRexx
Ruby
JRuby
Scheme
BiglooKawaSISCJScheme
Tcl
Jacl
New languages with JVM implementations
AtejiPX
BBj
BeanShell
Ceylon
CFML
CAL
E
Fantom
Flow Java
Fortress
Frege
Frink
Gosu
Ioke
Jelly
Join JavaJoy
Judoscript
Kotlin
Mirah
NetLogoNice
Noop
Pizza
Pnuts
Processing
X10
Xtend
Popular Languages
and
50+ languages

7. Why JVM will outlive Java?
•Java lost it’s primary focus -Simplicity
oBut for GC and pointers, Java more or less has same amount of complexity that C/C++ used to have.
•Not widely used in new developments (especially in startups). But strong contender in Enterprise world.

8. Job Trends –last 8 years
Other JVM languages eating
Java’s share
Note the decline

9. JVM –Universe’s most stable/Robust Execution Environment!

10. Opportunity to you!
•If you are a JVM Engineer. It doesn’t matter
•What Language –Java, Scala, Groovy, Jruby, Clojure….
•What Server –Tomcat, Resin, Jboss, Webshphere
•What Framework –Spring, Apache, Guava….
•You are going to be invaluable. You can
•isolate performance bottlenecks
•keep production highly available –99.999%
•Scale the Platform
10 million Java Developers. <3% know about JVM

11. JVM Engineers –Super Stars of Organization

12. Thank you!
•To learn more about JVM visit my blog: http://tier1app.com/