Setting up the Java Development Kit on Linux
The Elements compiler requires the Java SDK 6 or later to be installed if you want to build Java and Android apps. Make sure the
JAVA_HOME environment variable points to the root of your JSDK install
You can obtain the latest download at the URL below.
If you have a custom version of Java installed that Fire for some reason does not detect on its own, or if you want to override the JDK and JRE paths manually (and know what you are doing), you can manually change the paths in the Preferences dialog, overriding the default.