does anyone know of a way to make gradle spit out ...

# scripting

[Nikky]

does anyone know of a way to make gradle spit out the location of the jdk that is being used ? that would be very helpful for passing it as system property to the scripting stuff

[Czar]

org.apache.tools.ant.util.JavaEnvUtils.getJavaHome()
Or directly System.getProperty("java.home")
Or this, to be on the safe side: System.getProperty("org.gradle.java.home") ?: System.getProperty("java.home")

[Nikky]

all of those point to the jre directory, is that always the case ?

[Nikky]

but i think this one might be helpful: org.apache.tools.ant.util.JavaEnvUtils.getJdkExecutable("javac")

[sean]

https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html

java.home pointing to the JRE directory is actually expected behavior

[sean]

I know Gradle tries to change Java Home for compilation like this, something similar might make sense for you. Be forewarned that this can cause issues with different threads in the same JVM if they need to create an SSL context or something, as that references the java.home system property to find the cacerts file

[sean]

https://github.com/gradle/gradle/blob/d0f1d2d1c195b071d6e852c25e7b1364636f575f/subprojects/language-java/src/main/java/org/gradle/api/internal/tasks/compile/JavaHomeBasedJavaCompilerFactory.java#L60

This is how it happens in Gradle

[Nikky]

what i do is this:

val javac = File(JavaEnvUtils.getJdkExecutable("javac"))
            val jdkHome = javac.parentFile.parentFile

[Nikky]

which i can then pass as systemProperty