Google Web Toolkit (GWT)

gwt-dnd Library providing easy to use drag-and-drop capabilities to GWT.
MyGWT/Ext GWT
gwt-ext
gwt-sl
gwittir
hibernate4gwt
GWT-EXT 2.0 Showcase
google-web-toolkit-incubator
gwtx : An extended GWT JRE Emulation Library that picks up where GWT's basic set left off
The Rocket GWT library/framework consists of a number of components that can assist developers get more out of GWT. e.g. Comet support, ...

gwt-toolingGoogle Webtoolkit (GWT) Tooling for Eclipse
- Eclipse update URL : http://eclipseguru.org/
Cypal Studio for GWT is a set of Eclipse plugins for the Google Web Toolkit. Its free and Open Source. Its distributed under Apache License.

I18N support
Strongly typed language benefits: No JavaScript syntax errors
Tooling support: eclipse, etc.
Debugging support
Unit Testable
Compiled to specific targets: no browser specific code
Cross browser support
Users are familiar seeing/using GWT widgets: Google application suite and many other Web 2.0 apps
Able to use 3rd party libraries via JSNI (JavaScript Native Interface)
Rapid development using GWT tools such GWTShell etc.
3rd party tools for producing WYSIWYG UI
MVC implementation that is very similar to programming in AWT/SWING
- "When working with GWT as a developer, it's best to think of it as an analogue to the Java Abstract Windowing Toolkit (AWT). It's the basis for your application framework, not the framework itself."
GWT4Gadgets: Support for iGoogle Gadgets / OpenSocial Apps / Google Mapplets
Offline applications using Google-Gears
Full access to the GData APIs
Supports GWT-RPC, REST, WS, etc. communication to back-end, and or Data-APIs
- Can send complex Java types to and from the server. Data gets serialized across network
Accessibility support: ARIA support on FireFox 3+, or FireFox2 with FireVox
Works with Java-Applets and or Flash

Checkout source code
- svn checkout http://google-web-toolkit.googlecode.com/svn/tools/ ~/src/gwt-tools
- svn checkout http://google-web-toolkit.googlecode.com/svn/trunk/ ~/src/gwt-trunk
Setting environment variable
- setenv GWT_TOOLS ${HOME}/src/gwt-tools
- setevn GWT_EXTERNAL_BROWSER /usr/bin/firefox
Build gwt-trunk
- cd ~/src/gwt-trunk
- ant
The GWT build creates each binary distribution in the build/dist subdirectory of the source root directory
- ls ~/src/gwt-trunk/build/dist
  - gwt-linux-0.0.0.tar.bz2, gwt-mac-0.0.0.tar.gz, gwt-windows-0.0.0.zip
Unpack the binary that matches your operation system
- tar xvzf gwt-mac-0.0.0.tar.gz
- mv gwt-mac-0.0.0 ~/local
- cd ~local; ln -s gwt-mac-0.0.0 gwt
Add GWT binary root folder to execution path
- setenv PATH ${PATH}:${HOME}/local/gwt

Create project folder and generate eclipse project file
- mkdir ~/src/MyProject
- cd ~/src/MyProject
- projectCreator -eclipse MyProject
Create default application
- cd ~/src/MyProject
- applicationCreator -eclipse MyProject edu.ucdavis.gwt.client.MyApplication

Run OOTB created sample application
- cd ~/src/MyProject
- ./MyApplication-shell