A vrais dire je me pose la question et google réponds :

  • Avec GWT
    • Extensions gwt
      • MyGWT is an open source Java library for the Google Web Toolkit. The library helps developers easily create compelling desktop like AJAX web applications.
      • GWT-Ext is a powerful widget library that provides rich widgets like Grid with sort, paging and filtering, Tree's with Drag & Drop support, highly customizable ComboBoxes, Tab Panels, Menus & Toolbars, Dialogs, Forms and a lot more right out of the box with a powerful and easy to use API. It uses GWT and Ext. Click on the images below to see a live example of GWT-Ext in action.
      • GWT-dnd Library providing easy to use drag-and-drop capabilities to Google Web Toolkit (GWT) projects.