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Summary	Squawk Java ME VM (JVM)
Categories	None
License	GNU General Public License (GPL v. 2.0)
Owner(s)	arshan_poursohi, derek_white, eric_arseneau, rgoldman, roger_meike

Welcome to Squawk

Overview

Squawk is an open source virtual machine for the Java language that examines better ways of building virtual machines. Most commercial virtual machines are written in low level languages such as C and assembler. We believe that virtual machines can be simplified by writing them in a higher level language, and further simplified by implementing the VM in the language that the VM is implementing. This idea was inspired from Squeak, a Smalltalk environment written in Smalltalk.

Goals of Squawk:

Write as much of the VM in Java as possible
Targeting small, resource constrained devices
Enable Java for micro-embedded development

more...

Squawk is part of ongoing research at Sun Microsystems Laboratories under Project Squawk. See an interview done with the project lead, Eric Arseneau, at the Sun Laboratories Virtual Tour (visit the Project Squawk room).

See presentation made by Eric Arseneau at the Java ME Developer Days conference, slides and recording.

Desktop

Having the ability for Squawk to run on desktops provides for a simple test bed to try out new ideas, before having to tackle porting to devices that may not provide for good debugging support. It also allows for a simple emulation tool for users of the Squawk VM to try out their applications before they are deployed to an actual device.

The desktop platforms Squawk supports today are

Solaris (SPARC & x86)
Windows NT, XP
Mac OS X (PPC & x86)
linux systems

Sun SPOTs

Squawk is the VM that enables Java development on Sun SPOTs. Sun SPOTs are really cool wireless sensor devices that allow software and hardware people to build interesting micro-embedded applications.

The SPOTs project has a java.net project in addition to its own website .

Go check them out, you wont be disappointed :)

What's Here

All source and documentation are stored in the subversion repository link at the left. You can also browse the source repository online using the very nice FishEye subversion browser. Also useful is the Issue (bug) database for Squawk and Sun SPOTs link at the left. Documentation, including build directions, is on the Squawk Wiki. And feel free to ask questions or lurk in the forum .