Problem running tests in module controls inside Eclipse

[fastegal at swingempire.de]

With the step-by-step debugging help provided by nlisker over at  
javafxports (https://github.com/javafxports/openjdk-jfx/issues/187 -  
which cleaned up some inherent misconception on my part, thanks!) I  
managed to run tests in base and graphics from inside Eclipse (right  
click and run as/unit test), but not in controls (complete stacktrace  
is at the end), barking with essentially:

Caused by: java.lang.IllegalStateException: Toolkit not initialized

Which is the usual complaint if the fx app thread is not yet started.  
For my own tests I have a class rule that fires it up, but how to  
start it for openjfx controls tests?

The complete stacktrace:

java.lang.ExceptionInInitializerError
	at  
javafx.controls/test.javafx.scene.control.TextAreaTest.setup(TextAreaTest.java:53)
	at  
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native  
Method)
	at  
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at  
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at  
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at  
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at  
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at  
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at  
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at  
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at  
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
	at  
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
	at  
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)
	at  
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
	at  
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
	at  
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)
Caused by: java.lang.IllegalStateException: Toolkit not initialized
	at  
javafx.graphics/com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:410)
	at  
javafx.graphics/com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:405)
	at  
javafx.graphics/com.sun.javafx.application.PlatformImpl.setPlatformUserAgentStylesheet(PlatformImpl.java:695)
	at  
javafx.graphics/com.sun.javafx.application.PlatformImpl.setDefaultPlatformUserAgentStylesheet(PlatformImpl.java:657)
	at javafx.controls/javafx.scene.control.Control.<clinit>(Control.java:99)