Module javafx.controls not found in Java 9

Pavel_K :

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

ModuleFinder finder = ModuleFinder.of(modAPath, modBPath);
ModuleLayer parent = ModuleLayer.boot();
Configuration cf = parent.configuration().resolveAndBind(finder, ModuleFinder.of(), new HashSet<>());
ClassLoader scl = ClassLoader.getSystemClassLoader();
ModuleLayer newLayer = parent.defineModulesWithOneLoader(cf, scl);

I thought that JDK modules will be loaded automatically but I get

Exception in thread "main" java.lang.module.FindException: Module javafx.controls not found, required by modulea
    at java.base/java.lang.module.Resolver.findFail(Resolver.java:889)
    at java.base/java.lang.module.Resolver.resolve(Resolver.java:191)
    at java.base/java.lang.module.Resolver.bind(Resolver.java:297)
    at java.base/java.lang.module.Configuration.resolveAndBind(Configuration.java:428)
    at java.base/java.lang.module.Configuration.resolveAndBind(Configuration.java:230)

At the same time when I do: java --list-modules, the output is:

...
javafx.base@9
javafx.controls@9
javafx.deploy@9
javafx.fxml@9
javafx.graphics@9
javafx.media@9
javafx.swing@9
javafx.web@9

How to fix it?

Pavel_K :

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.

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