JVM architecture! need help

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Kulbir - 19 Apr 2006 13:09 GMT

HI,

can anybody tell me the JVM architecture pictorially. mean how the
components are organizied insidei JVM and how its looks like.

thanks

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James McGill - 19 Apr 2006 16:51 GMT

> HI,
>
> can anybody tell me the JVM architecture pictorially. mean how the
> components are organizied insidei JVM and how its looks like.
>
> thanks

I've never seen a diagrammatic view of the JRE (As opposed to the JVM
which basically breaks down into two blocks, a class loader and a
bytecode executor.)

So there's also Registers, Arithmetic and Logic, a bytecode verifier
(part of the bytecode executor), a heap allocation scheme, IO, and I'm
sure i'm forgetting stuff. I'd like to see a picture of it too.

http://java.sun.com/docs/books/vmspec/

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Kulbir - 20 Apr 2006 13:24 GMT

hi,

i found a link which can help you to see the various components of the
jvm

http://images.google.co.in/imgres?imgurl=http://medialab.di.unipi.it/doc/JNetSec
/jns_ch3-4.gif&imgrefurl=http://medialab.di.unipi.it/doc/JNetSec/jns_ch3.htm&h=2
62&w=398&sz=7&tbnid=bKAqxfPGcpDEMM:&tbnh=78&tbnw=120&hl=en&ei=6ypGRP6AHcqCJebzxb
IO&sig2=PE60Q5-ZradaH87Urdbu6A&start=14&prev=/images%3Fq%3Djvm%2Bcomponents%26sv
num%3D10%26hl%3Den%26lr%3D

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Oliver Wong - 19 Apr 2006 20:41 GMT

> HI,
>
> can anybody tell me the JVM architecture pictorially. mean how the
> components are organizied insidei JVM and how its looks like.

You could download the source code for SableVM (http://sablevm.org/) and
use various tools to generate UML diagrams for you.

Etienne Gagnon's paper can be downloaded from
http://www.sable.mcgill.ca/publications/papers/#jvm01 (there's two pictures
in it).

- Oliver

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cchedgey@tssg.org - 24 Apr 2006 17:51 GMT

> > HI,
> >
[quoted text clipped - 9 lines]
>
> - Oliver

By far the best tool for this kind of "pictorial architecture" is
Structure101 from www.headwaysoftware.com. Just point it at the jars to
get a complete browsable model of the sub-components and dependencies
at every level. Great fun!

Chris.

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Beau Dude - 24 Apr 2006 19:01 GMT

hi,

I found this http://www.artima.com/insidejvm/ed2/jvm2.html link as
usefull information related to JVM.

Cheers,

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Roedy Green - 20 Apr 2006 00:33 GMT

>can anybody tell me the JVM architecture pictorially. mean how the
>components are organizied insidei JVM and how its looks like.

You can peek at the source for Kaffe. You can look at Sun's source if
you sacrifice a small mammal and promise your first born son.

See http://mindprod.com/jgloss/jdk.html
http://mindprod.com/jgloss/kaffe.html

Signature

Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.

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JVM architecture! need help

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