Updates:
1. Added support of Eclipse 3.6.* Helios, and earlier Eclipse
2. Java2Script sources repository moved to Google Code at http://code.google.com/p/java2script/
3. Sebastian Gurin joined Java2Script and opened source YUI4Java project ( http://yui4java.sourceforge.net/ ), which is based on technologies of Java2Script compiler
4. Added SimpleStore API for local storage
5. Added support of Google Chrome browser
6. Added web mail client demo ( http://kexmail.com/ )
7. Improved web instant messenger demo ( http://webuzz.im/ )
8. Added early support of JFace ( http://demo.java2script.org/jface/ )
8. Other improvement and bugfixes

Java2Script Feature List:

Java2Script Core
—————-
1. Object oriented JavaScript simulator is introduced
2. JavaScript ClassLoader is built inside
3. Eclipse JDT based Java to JavaScript compiler, support Java 1.4 and Java 5 features, including generic, enums, static imports, enhanced loops
4. Support incremental building for Java projects
5. Support Hotspot JavaScript swapping for debugging
6. Support most classes in java.lang.*, java.utils.* and others packages
7. Support native JavaScript through @j2s* Javadoc in Java sources
8. Support creating Java2Script projects by wizard, including Servlet project
9. Support Eclipse 3.3.*, 3.4.*, 3.5.* and 3.6.*

Java2Script SWT
—————
1. Eclipse SWT 3.1 API is ported for JavaScript in modern browsers, Firefox, Google Chrome, Internet Explorer, Opera, Safari
2. Desktop and window manager are built inside
3. Support UI blocking fow SWT’s Shell and Dialog
4. Support SWT deffered layout
5. Support detecting font size change in Firefox

Java2Script AJAX
—————-
1. HttpRequest/AJAX is introduced for both Java and JavaScript
2. Simple RPC API is introduced to call back Java server, which supports Cross Site Scripting
3. Simple and Compound Pipe API is introduced to setup Comet connection to server.
4. Support dynamic class loading for both Java and JavaScript
5. Support Java reflection (early implementation)
6. Support Simple Store API for local storage

Java2Script JUnit
—————–
1. Support JUnit tests both Test Case and Test Suite in text mode.

Java2Script Example
——————-
1. Web instant messenger services, support online web Gtalk (Google Talk), MSN (Windows Live Messenger), Yahoo! Messenger, AIM/ICQ, Jabber/XMPP. Please visit http://webuzz.im/ , http://webuzztogether.com/ or http://demo.java2script.org/
2. Web mail client services, support online web mail, including Gmail, Hotmail, Yahoo! Mail, AOL Mail, and other IMAP/POP3 & SMTP providers. Please visit http://kexmail.com/ , http://webuzz.im/mail/ or http://demo.java2script.org/mail/
3. SWT Tetris Game. Please visit http://demo.java2script.org/tetris/
4. SWT Control Examples. Please visit http://demo.java2script.org/controls/
5. Advanced Image Viewer based on YUI4Java. Please visit http://yui4java.sourceforge.net/yui/ImageViewerFrame.html
6. Early JFace demo. Please visit http://demo.java2script.org/jface/

For more demos, please visit: http://demo.java2script.org/

For more detailed feature description, please visit Java2Script homepage: http://j2s.sourceforge.net/ , https://sourceforge.net/projects/j2s/ or http://java2script.org/

This time, I would like to introduce you Java2Script powered WeMail ( http://webuzz.im/mail/ ), a Gmail-alike web mail client. WeMail is a general web mail client for all POP/IMAP & SMTP mail providers. So it supports Gmail, Hotmail/Live Mail, Yahoo! Mail, AOL/AIM Mail and others.

WeMail currently provides Gmail demo accounts for demo: after the page is loaded, select “java2script.demo” or “java2script.talk” from email drop-down list and then login. You can compose and send new emails (Drafts are auto-saved). You can read and reply emails. Folder Drafts, Sent Mails, All Mails, Spam and Trash are supported. Setting, Search and Contact is not supported yet.

Screenshot of WeMail Web:

Screenshot of WeMail Desktop:

You can also visit WeMail development blog for more screenshots

WeMail is based on Java, JavaMail, SWT and Java2Script technologies, designed by Eclipse & WindowBuilder Pro. Here is WeMail development summary:

• First, design WeMail using WindowsBuilder Pro designer. Designing UI takes a lot of the time.
• Second, import JavaMail, separate email jobs into several Simple RPC classes and implement them using JavaMail API.
• Third, run and debug WeMail as a normal desktop Java application. Everything is about native Java development.
• Then, use Java2Script plugin to compile WeMail Java sources into JavaScript.
• At last, “Running as Java2Script Application”, customize a few lines of the generated JavaScript.

Why implementing another Gmail-alike web mail client?

1. People likes to see Google products powered by GWT’s Java to JavaScript technology. But there is no such GWT-powered Gmail by now. Java2Script powered Gmail-alike web mail client proves this concept. And it only takes less than 2 weeks.
2. WeMail provides the abilities to use Gmail UI for other mail providers besides Gmail, like Hotmail or Yahoo! Mail. Gmail UI may increase people’s daily email processing efficiency.
3. WeMail provides people another way for accessing to Gmail, Yahoo! Mail or other mail providers, in cases accessing to certain websites is blocked.

BTW: Along with development of WeMail, there are a few Java2Script updates (compiler bug-fixing and SWT library improvements). Please check it out.

Comparing to previous version, 1.0.0, Java2Script 2.0.0 now supports both Eclipse 3.3.* and Eclipse 3.4.*. And Java2Script 2.0.0 has a new feature named “SWT Desktop“, providing Tray widget, task bar and shortcut dashboard. And there is Simple and Compound Pipe APIs to setup Comet connection back to server. Besides these new features, we have fixed lots of bugs in Java2Script compiler, Java core library and SWT library. And we add another demo: an SWT Tetris game.

Java2Script 2.0.0 is much more stable and it is ready for product. WeBuzz.IM is one of products using Java2Script 2.0.0. WeBuzz.IM provide services to those users whose Gtalk/MSN/Y!Messenger/AIM being blocked by firewalls. Compound Pipe technology is used to provide multiple IM login using only one connection, and Java2Script’s SWT desktop provides familiar desktop user experience for users.

And developer Sebastian Gurin joined us in Oct 2008.

Please let us know your thought.

Appendix (Java2Script Feature List)

Java2Script Core
—————-
1. Object oriented JavaScript simulator is introduced
2. JavaScript ClassLoader is built inside
3. Eclipse JDT based Java to JavaScript compiler, support Java 1.4 and Java 5
features, including generic, enums, static imports, enhanced loops
4. Support incremental building for Java projects
5. Support Hotspot JavaScript swapping for debugging
6. Support most classes in java.lang.*, java.utils.* and others packages
7. Support native JavaScript through @j2s* Javadoc in Java sources
8. Support creating Java2Script projects by wizard, including Servlet project
9. Support Eclipse 3.3.* and 3.4.*

Java2Script SWT
—————
1. Eclipse SWT 3.1 API is ported for JavaScript in modern browsers, Firefox, Internet Explorer, Opera, Safari, Chrome
2. Desktop and window manager are built inside
3. Support UI blocking fow SWT’s Shell and Dialog
4. Support SWT deffered layout
5. Support detecting font size change in Firefox

Java2Script AJAX
—————-
1. HttpRequest/AJAX is introduced for both Java and JavaScript
2. Simple RPC API is introduced to call back Java server, which supports Cross Site Scripting
3. Simple and Compound Pipe API is introduced to setup Comet connection to server.
4. Support dynamic class loading for both Java and JavaScript
5. Support Java reflection (early implementation)

Java2Script JUnit
—————–
1. Support JUnit tests both Test Case and Test Suite in text mode.

Java2Script Example
——————-
1. Web IM services in Java2Script ( http://demo.java2script.org/ )
2. SWT Tetris Game ( http://demo.java2script.org/tetris/ )
3. SWT Control Examples ( http://demo.java2script.org/controls/ )

For more feature detailed description, please visit:
http://j2s.sourceforge.net/features.html

There are four elements on the above screen shot: Tray Bar (left upper corner), Task Bar (left side), Quick Shortcut Bar (bottom), Window.

This is a prototype design for Java2Script Desktop. Please check it out at http://izuz.net/gtalk/ . Hope to hear your feedback.

Please visit http://j2s.sourceforge.net/ for more information.

Feature List
==========

Java2Script Core
—————-
1. Object oriented JavaScript simulator is introduced
2. JavaScript ClassLoader is built inside
3. Eclipse JDT based Java to JavaScript compiler, support Java 1.4 and Java 5 features, including generic, enums, static imports, enhanced loops
4. Support incremental building for Java projects
5. Support Hotspot JavaScript swapping for debugging
6. Support most classes in java.lang.*, java.utils.* and others packages
7. Support native JavaScript through @j2s* Javadoc in Java sources
8. Support creating Java2Script projects by wizard, including Servlet project
9. Support loading *.js from Firefox Add-on.
10. Support Eclipse 3.1.*, 3.2.* and 3.3.*

Java2Script SWT
—————
1. Eclipse SWT 3.1 API is ported for JavaScript in modern browsers, Firefox, Internet Explorer, Opera, Safari
2. Window manager is built inside
3. Support UI blocking fow SWT’s Shell and Dialog
4. Support SWT deffered layout
5. Support detecting font size change in Firefox

Java2Script AJAX
—————-
1. HttpRequest/AJAX is introduced for both Java and JavaScript
2. Simple RPC API is introduced to call back Java server, which supports Cross Site Scripting
3. Support dynamic class loading for both Java and JavaScript
4. Support Java reflection (early implementation)

Java2Script JUnit
—————–
1. Support JUnit tests both Test Case and Test Suite in text mode.

Java2Script Example
——————-
1. Google Talk in JavaScript ( http://demo.java2script.org/gtalk/ )
2. SWT Control Examples ( http://demo.java2script.org/controls/ )

For more feature detailed description, please visit:
http://j2s.sourceforge.net/features.html

And Java2Script 1.0.0 Final Release will be available at the end of this September.

New and Noteworthy
==================
Java2Script Core
—————-
1. Eclipse 3.3 supported
2. Replace Java builder with Java2Script builder for Java2Script project
3. Hotspot supports for debugging.
4. Bug fixes.

Java2Script SWT
—————
1. Bug fixes.

Java2Script AJAX
—————-
1. Update Simple RPC from 1.0.0 to 1.0.1
2. Bug fixes

Java2Script Example
——————-
1. Google Talk’s Java2Script copy updated ( http://demo.java2script.org/gtalk/ ).

Hope to hear your feedbacks.

PATCH UPDATE:

If you download or install Java2Script 1.0.0 M5 after March 21, 2007, you should ignore this patch.

If you download or install Java2Script 1.0.0 M5 before March 21, 2007, you may need to make a patch following the instructions:

Because of a not tested bug that the packed Common.z.js in plugins/net.sf.j2s.lib_1.0.0(.v510/.v520)/j2slib/org/eclipse/swt/widgets/ does not contain TabItem.js, which will result in errors of “$wt.widgets.TabItem is not a constructor” when loading Java2Script SWT application that uses TabFolder widget.

To fix up the problem, please download the patch, and unzip it, replace the old Common.z.js with the new Common.z.js.

If you also download the sources, please replace net.sf.j2s.lib/build/build.xml with the new build.xml.

If you have already installed Java2Script Firefox Add-on, please replace **Path to your Firefox profiles**/extensions/{d60b46a9-bfe3-4b22-8844-07089202e0e6}/chrome/content/
java2script/1.0.0-m5/org/eclipse/swt/widgets/Common.z.js with the new one. In Windows, Common.z.js may be in **System Drive**:\Documents and Settings\**Your Login Name**\Application Data\Mozilla\Firefox\Profiles\**Unique String**\extensions\{d60b46a9-bfe3-4b22-8844-07089202e0e6}\chrome\content\
java2script\1.0.0-m5\org\eclipse\swt\widgets\.

I feel very sorry about the inconveniences.

March 21, 2007

And here is the online Java2Script’s GTalk.

And because Java2Script’s SimpleRPC supports Cross Site Script, the above application can be loaded from any pages by adding the following HTML

Launch GoogleTalk

to your page.

Or you can just copy the above “javascript:…” part (without quotes) and paste it to address bar and go. You will get a Google Talk client (pure JavaScript) in your page (this page or other pages). This “javascript:…” part is considered as A Link An Application (ALAA).

By digging about Google Talk on Digg.com, I found that Google Talk Gadget on Google’s personalized homepage was really hitting the latest news.

Enjoy it.

Update:

The Java2Script’s Google Talk sources are available at SVN repository now:
http://j2s.svn.sourceforge.net/viewvc/j2s/trunk/demos/org.java2script.demo.gtalk/

And you can also download j2s-1.0.0-m5-gtalk.zip, unzip it and deploy gtalk.war to your Java servlet container.