Oracle JavaScript Extension Toolkit is a great open source toolkit for writing modular single-page applications. In this session, you’ll learn how you can develop applications with it in plain Java instead of JavaScript through the help of DukeScript. You can have it all: a statically typed language with a huge and mature ecosystem, excellent IDEs, and first-class testing support—and a modern, mobile-ready UI with a rich set of UI components and support for internationalization and accessibility.