Errai requires a JDK version 6 or higher and depends on Apache Maven to build and run the examples, and for leveraging the quickstart utilities.
- JDK 6.0: http://java.sun.com/javase/downloads/index.jsp
- Apache Maven: http://maven.apache.org/download.html
|Launching maven the first time|
Please note, that when launching maven the first time on your machine, it will fetch all dependencies from a central repository. This may take a while, because it includes downloading large binaries like GWT SDK. However, subsequent builds are not required to go through this step and will be much faster.