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[Java]
Apache Harmony : J2SE project at the Apache Software Foundation
[
geir
]
We kicked of a J2SE project today at the ASF. If the Incubator PMC approves, we're on our way.
Here's the proposal. Please come and participate.
Project Harmony
===================
Motivation
----------
There is a clear need for an open-source version of Java 2,
Standard Edition (J2SE) runtime platform, and there are many
ongoing efforts to produce solutions (Kaffe, Classpath, etc).
There are also efforts that provide alternative approaches to
execution of Java bytecode (GCJ and IKVM). All of these efforts
provide a diversity of solutions, which is healthy, but barriers
exist which prevent these efforts from reaching a greater potential.
Proposal
--------
We propose that we create a new Apache project, Harmony, that will achieve
the following goals :
1) create a Compatible, independent implementation of J2SE 5
under the Apache License v2
2) create a community-developed modular runtime (VM and class library)
architecture to allow independent implementations to share runtime
components, and allow independent innovation in runtime components
In doing so, we intend to create a broad, collaborative community of
contributors, implementors and users of the modular platform specification.
To begin, we propose the following as a basic architectural blueprint
as a starting point for our discussion :
http://people.apache.org/~geirm/harmony.jpg
We will create directly, via inclusion of independent third-party code, or
through contribution :
a) a freely implementable specification of a modular VM
and class library that allows for multiple, independent
implementations
b) a test suite for interoperability testing of the modules
c) an implementation under the Apache License of the modular VM
d) a class library under the Apache License compatible with
the J2SE 5 specification that implements the defined interfaces
We will start with this mechanism because we desire to :
- have a simple plan upon which coding can immediately begin
- ensure that we have a focal point to begin the conversation
among interested members of the community
- have a clearly defined set of technical needs to allow
potential contributors, either code contributors or
individual participants, a basis for consideration
- ensure that this is a community effort - together we will
architect and implement via fresh new code or donation
- produce a set of specifications/designs allowing multiple
interoperable implementations that allow for sharing,
extension and innovation
We propose that the following people are considered the starting
participants. This set represents members from across the community,
this diversity a factor we wish to start with and preserve as we grow.
These individuals have expressed an interest in participating in the
architecture and design work. The information in parenthesis indicates
other community participation or relevant experiences of that individual :
Guy Churchward (individual w/ commercial VM experience)
Joakim Dahlstedt (individual w/ commercial VM experience)
Jeroen Frijters (IKVM)
Geir Magnusson Jr. (Apache)
Ricardo Morin (individual w/ commercial VM experience)
Georges Saab (individual w/ commercial VM experience)
Bruno Souza (SOUJava)
Davanum Srinivas (Apache)
Dalibor Topic (Kaffe)
Tom Tromey (GCJ)
Weldon Washburn (individual w/ commercial VM experience)
Mark Wielaard (Classpath)
and the following individuals have expressed interest in participating
as committers for the Apache-licensed implementation :
Jeroen Frijters (IKVM)
Ben Laurie (Apache)
Geir Magnusson Jr. (Apache)
Ricardo Morin (individual w/ commercial VM experience)
Bruno Souza (SOUJava)
Davanum Srinivas (Apache)
Dalibor Topic (Kaffe)
Tom Tromey (GCJ)
Weldon Washburn (individual w/ commercial VM experience)
These individuals will participate as Incubator Mentors :
Noel Bergman
Ben Laurie
Geir Magnusson Jr.
Stefano Mazzocchi
Sam Ruby
Leo Simons
Davanum Srinivas
The following Apache Members will be the sponsoring members :
Noel Bergman
Jason Hunter
Ben Laurie
Ted Leung
Geir Magnusson Jr.
Stefano Mazzocchi
Sam Ruby
Leo Simons
Davanum Srinivas
The following community members support this effort :
Danese Cooper
Brian Goetz
Doug Lea
Operating Considerations
------------------------
0) We have established a list for discussions. Unless your
comment is directed to the general Incubator community or the
Incubator PMC, please post everything to :
harmony-dev@incubator.apache.org
You can subscribe by sending an email to
harmony-dev-subscribe@incubator.apache.org
Until this proposal has been accepted by the Apache Incubator PMC,
these lists are provisional.
1) Due to the various known and unknown risk factors of this project,
we propose that in addition to the required Individual Contributor License
Agreement (ICLA) we shall require that any committer to Harmony will
have a Corporate Contributor License Agreement (CCLA), when appropriate,
on file with the ASF Secretary, and will keep that document current with
respect to current employer to preserve committer status. We do this
in order to help protect the community, both contributors and users,
from unauthorized incorporation of code or other intellectual property.
2) Historically, there has been wide exposure to VM and class-library-specific
source code that is the property of Sun Microsystems as well as others, as
it is common for commercial J2SE implementations to be based on licensed
Sun code. We wish to make every effort to ensure that the licenses and
rights of external projects and efforts is properly respected. To that end,
we will explore additional ways to work with the Apache Incubator to ensure
that all IP is carefully monitored and tracked as it enters the project.
How does one "express interest" in joining this project? I've worked on many projects and am a Java advocate and developer. I think I could help, just point me where to go. --Mason Glaves, May 7, 2005 02:58 PM
I imagine information will appear on http://incubator.apache.org/projects/index.html when the proposal is accepted. --Paul Ruane, May 7, 2005 03:25 PM
Beware: --Slashdot, May 7, 2005 03:56 PM
I seriously hope that they stick to the standard and make it as compatable as possible so that stuff I compile on Sun's J2SE 5 implementation runs on this VM. Good luck guys! --Michael McCutcheon, May 7, 2005 03:59 PM
Generics: Will this VM use 'real' generics that actually produce performance increases, unlike Sun's 'fake' generics that only hide casting, etc. ? --Michael McCutcheon, May 7, 2005 04:04 PM
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