How to work with JDK 9?
Answered
Hello,
I am attempting to start a new JDK 9 project (JavaFX or Plain Java) with Intelij 2016.2. The project seems to be created OK but when I attempt to run it I get a message telling me the flag -release is invalid.
I am unsure what else to try? I can'f find anything on running with the JDK 9 and Jigsaw.
This is a fresh install of InteliJ and a brand new project.
Thanks!
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See https://intellij-support.jetbrains.com/hc/en-us/community/posts/203361044-2016-3-does-not-work-with-jdk9-b135-java-compiler.
Thanks for the tip - how do I set that to experimental? I can't find the setting.
You can change it here: http://i.imgur.com/2ShcJOg.png. Note that each module may override this setting, so also check here: http://i.imgur.com/6MaDGQE.png.
That worked - thanks!
I don't have the experimental setting in my IDE. What is the workaround?
What error do you get? Did you try Java 9 language level?
I was on 2016.3.5. After upgrading to 2016.3.7: I did see the experimental setting. I was getting the "Invalid flag: -release" error. I had to go to every module and change the language level to experimental. Is there a way to change this in one place and have it take effect for all modules?
No, this has to be changed per module.