In this episode Gordon and Jeff talk about:

GWT 2.5 Is Released

  • Super Dev Mode
    • Source mapping
    • no browser plugins
  • Elemental
    • new library for fast lightweight “to the metal” web programming
  • New compiler optimizations
    • optionally use Closure compiler
    • Fragment merging for large apps with many code splits
  • Updated ARIA support
    • Accessibility
  • UIBinder Enhancements
    • support for Cell rendering
  • Validation Enhancements
    • JSR-303 Bean Validation

gwt-maven-plugin version 2.5.0 is released

  • A maven mojo for using 2.5.0 in your Maven projects

Major Advantages Of GWT

On someone asked what the major advantages of GWT are. Here are some of the responses:

  • Both browser-side and servlet-side coding in Java
  • Single code base makes it both easy to develop and debug
  • Quite a mature technology now with big user community
  • Actively managed and being enhanced by Google
  • Easy integrations with other technologies, e.g., JSP and native JavaScript
  • Easy to embed GWT widgets in web pages
  • Handles most JavaScript cross-browser issues
  • Provides a lot of abstractions for client-server programming like GWT-RPC and RequestFactory
  • “I would say that Java tools, for example testing and packet management. Also it generates working javascript for mainstream browsers.”

Calling GWT code from a Flash element In 4 Steps

  • Posted by Nick Tsitlakidis.
  • He uses Radio.js micro-library which handles all the event communication.
  • The method he uses:
    • Use in Flash to call out to JavaScript
    • In the Javascript method call into Radio.js to publish a method
    • Subscribes to Radio.js in GWT using JSNI
  • Radio.js micro-library which will handle all the event communication
  • Dependency-Free
  • Chainable Methods
  • Set Callback Scope
  • Lightweight
  • Radio.js is less than 1kb.

We use GWT, Do You?

  • Great little app that allows companies to register as users of Google Web Toolkit
  • Global registry
  • Show statistics on target environments, team size etc.
  • Cool

Not your Father’s Slider Bar

  • gwt-slider-bar a collection of ready to use slider bars for GWT.
  • Also has a framework to enable you to build your own.
  • Demo Site

This Week’s Power Tool:


  • Along with GWT-Phonegap gives you the tools to create a native mobile web apps.
  • Developed by Daniel Kurka
  • Mobile Widgets that are compatible with UIBinder
  • DOM API for touch and animation events
  • Themes for Android, iPhone, iPad and Blackberry
  • Supports offline HTML5 applicaitons
  • supports GWT RPC in Phonegap
  • Some of the widgets include:
    • Header List
    • Popups
    • Carousel
    • Slider
    • Elements
    • Forms
    • Progress Bar
  • Phonegapgives you access to native  native hardware and services for 7 mobile platforms through a Javascript API. Including access to:
    • Accelerometer
    • Camera
    • Captuer
    • Compass
    • Connection
    • Contacts
    • Device
    • Events
    • File
    • Geolocation
    • Globalization
    • Media
    • Notification
    • Splashscreen
    • Storage
  • GWT-Phonegap wraps that API in an easy to use GWT module
  • At version 1.1.2