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Junit Test fails for JavaFX nodes [message #1737890]

Wed, 13 July 2016 19:14

Matthew Montgomery

Messages: 5
Registered: May 2016

Junior Member

Why do JavaFX classes throw java.lang.ExceptionInInitializerError in a JUnit test?

I'm currently working with an e4 project that uses JavaFX plug-ins. Recently I started creating Junit tests for the plugins with fragment projects. I was able to run a test that imports a controller class after adding "-Dorg.osgi.framework.bundle.parent=ext" to the VM-Arguments.

However, when I try to use javafx.scene.control classes (Button, Label, etc.) in the test, a java.lang.ExceptionInInitializerError is thrown when I run a JUnit/JUnit Plug-in Test. From what I read, ExceptionInInitializerErrors are thrown something goes wrong when initializing a static variable or function. But simply calling

new Button("Test");
throws the error.

Is there anything I need to add to the VM Arguments or fragment project Manifest?

Thank you.

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Re: Junit Test fails for JavaFX nodes [message #1737892 is a reply to message #1737890]

Wed, 13 July 2016 19:43

Thomas Schindl

Messages: 6405
Registered: July 2009

Senior Member

For those JavaFX Nodes JavaFx has to be bootstrapped, which is done by the e4 framework- it's on my todo list to make TestFX support available but that needs to be shipped from outside Eclipse because of liscensing issues

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