Russel_Winder
Gradle fails to work with JDK9. The issue is the MaxPermSize option which is ignored by JDK8 but is not accepted by JDK9. How to switch off this option when running gradle or gradlew?

Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the user guide chapter on the daemon at http://gradle.org/docs/2.3/userguide/gradle_daemon.html
Please read the following process output to find out more:

Unrecognized VM option 'MaxPermSize=384m'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

https://discuss.gradle.org/t/gradle-fails-to-work-with-jdk9/9193