Eclipse/Java9: how to access internal javafx packages?

Question

My context:

• Eclipse IDE for Java Developers, Version: Oxygen.1a Release (4.7.1a), Build id: 20171005-1200oxygen
• jdk9.0.1
• win10

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Answer 1

Well, it's a bit hidden:

• open Java Build Path dialog of the project
• select Libraries tab
• select isModular entry
• use the Edit... button to open the module properties dialog
• select Details tab
• create all required entries with the Add.. button

If you have installed the Beta plugin for Java 9 support - uninstall. Make sure the latest Java 9 support plugin is installed.