JavaFX application in named module fails to launch if no main method

The attached test program launches and runs fine in the unnamed module. If it is packaged and run as a modular application, then it fails to launch.

Steps to reproduce:

1. Compile the attached test program as a module:

javac --module-source-path src -d build/classes src/mymod/module-info.java src/mymod/simple/Simple.java

2. Run the test program as a modular application:

java --module-path build/classes -m mymod/simple.Simple

It will fail with the following exception:

Error: Main method not found in class simple.Simple, please define the main method as:
   public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application