Module javafx.controls not found in Java 9

Question

I have two JPMS module in two files: modulea.jar and moduleb.jar. Modulea requires javafx.controls module. I need to use these modules

Answer 1

From @AlanBateman's comment:

The javafx.controls module is not loaded by default. You can force it into the boot layer by running with --add-modules javafx.controls.

NOTE: Starting with Java 11 JavaFX is a separate project.