Groovy - get JAVA_HOME from program

Question

I need to obtain JAVA_HOME property from Groovy (Gradle), does anyone know how to achieve this? Only way I can think of is somehow executing this from cmd line via Exec.

Thanks (I'm running Windows btw :))

Answer 1

System.properties.find { it.key == "java.home" }

Answer 2

A gotcha that bit me. Remember to use curly braces inside a gstring.

println "inside a gstring, java.home=$System.properties.'java.home' will be problematic

//dumps all system properties

but

println "inside a gstring, java.home=${System.properties.'java.home'} will be fine

Result: inside a gstring, java.home=C:\FAST\JDK64\1.7.0.79\jre will be fine