Cannot read resources in Java 9 module (JPMS)

Is it the error you are speaking about: 

Exception in thread "main" java.lang.NullPointerException
at java.base/java.io.Reader.<init>(Reader.java:167)
at java.base/java.io.InputStreamReader.<init>(InputStreamReader.java:72)
at testJPMS/test.Main.main(Main.java:14)

https://i.imgur.com/tGhry66.png

I tried to run it via Gradle from the console and the same error returns. So, I suppose it is hardly related to IntelliJ IDEA. 

Indeed, but it's working on my console when I do a `git clone` and a

    ./gradlew run

https://imgur.com/n6xOHgn 

This test project is a basic use of resource with Java 9 (Well, maybe I missed something?), but I need to use resources in a modular (Jigsaw) way. Maybe I have to configure something in Intellij to do so?

May you show your run/debug configuration (https://i.imgur.com/eLJqDSu.png)? 

Yes, that's how I work for now. But it's really unpractical mainly because the debug mode of gradle is really slow (my project is big), I'm loosing time with it. That's why I'd like to use the debugger of IJ.

Edit: Oh sorry, I miss read. I'll post what you ask soon.

So, here the screenshots.

This one with gradle is working and allow me to debug, but as I said earlier, it's really slow to debug with it on my full projects:

https://imgur.com/YGS82qH 

And meanwhile, using the IJ run configuration doesn't work:

https://imgur.com/a/glAuGEW 

Hello,

I found that gradle doesn't support for JPMS https://stackoverflow.com/questions/51864473/where-do-resource-files-go-in-a-gradle-project-that-builds-a-java-9-module/51921521#51921521 and maybe that is the issue.

Maybe one solution for this problem in intellij idea; this config generate the class and resources in the same folder. It works in Intellij 2019.3.3 and Java 11.

idea {
  module {
    inheritOutputDirs = false
    outputDir = compileJava.destinationDir
    testOutputDir = compileTestJava.destinationDir
  }
}

Here is related issue to track: https://youtrack.jetbrains.com/issue/IDEA-197469

Thank you all !