Install the needed tools

• Download and install OpenXava (if not yet installed):
  • Go to http://www.openxava.org/web/guest/downloads
  • Download the latest distribution. It's a zip file.
  • Uncompress the file in your computer.
• Download and install Java (if not yet installed):
  • Go to http://www.oracle.com/technetwork/java/javase/downloads/index.html
  • Download the latest JDK. OpenXava requires Java 5 or better.
  • Install it.
  • Set the JAVA_HOME value to the installation directory of your Java (in Windows in System > Advanced Options > Environment var).
• Download and install Eclipse (if not yet installed):
  • Go to http://www.eclipse.org/downloads
  • Download 'Eclipse IDE for Java EE Developers'.
  • Install it.