gradle java9 Could not target platform: 'Java SE 9' using tool chain: 'JDK 8 (1.8)'

Question

I want to use java9 on my gradle project inside eclipse oxygen. When I run:

Run as> Gradle Test on  GreeterTest.java

with the followin

Answer 1

I faced the same error with different JDK version, so i used the following code which works fine.

compileJava {
    options.fork = true
    options.forkOptions.javaHome = file('/Library/Java/JavaVirtualMachines/jdk-11.0.5.jdk/Contents/Home')
    targetCompatibility = 11
    sourceCompatibility = 11
}