JavaFX and Groovy Exception

You might have tried out the JavaFX Hello World example, from Oracle’s Getting Started with JavaFX guide, using Groovy.

You will then get the following exception:

Exception in thread "main" java.lang.RuntimeException: Error: class sun.reflect.NativeMethodAccessorImpl is not a subclass of javafx.application.Application

In order to fix this, change



launch(HelloWorld.class, args);

The example now runs fine with Groovy.

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