Home/ Questions/java lang module findexception module javafx controls not found - How to fix it?
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Litzy Nolan
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Asked: 2022-07-11T09:39:49+00:00 In:

java lang module findexception module javafx controls not found – How to fix it?

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Please help me fix the warning: java lang module findexception module javafx controls not found.

I have two JPMS modules, modulea.jar and moduleb.jar, in two separate files. Javafx.controls module is required for Modulea. These modules must be used in the new layer, so I did:

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 had assumed that the JDK modules would load automatically, but instead I receive this error message:

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)

When I run java —list-modules, the following is the result:

...
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 solve the above problem? Thank you.

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1 Answer

  1. Best Answer
    Expert

    Solution:

    There is no default loading of the javafx.controls module. By starting it with the --add-modules javafx.controls option, you can force it into the boot layer. Try that way to solve your problem: java lang module findexception module javafx controls not found.

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