[CSS] Intermittent Node_cssStateTransition_Test testPropertiesResetOnStyleclassChange failure on Linux.

Node_cssStateTransition_Test testPropertiesResetOnStyleclassChange fails on Linux.

com.sun.javafx.css.Node_cssStateTransition_Test > testPropertiesResetOnStyleclassChange FAILED
   java.lang.AssertionError: -fx-fill: <Value>
     <value>0xff0000ff</value>
     <converter>null</converter>
   </Value>
       at org.junit.Assert.fail(Assert.java:91)
       at org.junit.Assert.assertTrue(Assert.java:43)
       at com.sun.javafx.css.Node_cssStyleMap_Test$1.onChanged(Node_cssStyleMap_Test.java:162)
       at com.sun.javafx.collections.MapListenerHelper$SingleChange.fireValueChangedEvent(MapListenerHelper.java:157)
       at com.sun.javafx.collections.MapListenerHelper.fireValueChangedEvent(MapListenerHelper.java:71)
       at com.sun.javafx.collections.ObservableMapWrapper.callObservers(ObservableMapWrapper.java:115)
       at com.sun.javafx.collections.ObservableMapWrapper.put(ObservableMapWrapper.java:173)
       at javafx.scene.CssStyleHelper.transitionToState(CssStyleHelper.java:799)
       at javafx.scene.Node.impl_processCSS(Node.java:8890)
       at javafx.scene.Parent.impl_processCSS(Parent.java:1281)
       at javafx.scene.Node.processCSS(Node.java:8733)
       at javafx.scene.Scene.doCSSPass(Scene.java:569)
       at javafx.scene.Scene.access$3700(Scene.java:201)
       at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2389)
       at com.sun.javafx.tk.Toolkit$3.run(Toolkit.java:322)
       at com.sun.javafx.tk.Toolkit$3.run(Toolkit.java:320)
       at java.security.AccessController.doPrivileged(Native Method)
       at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:320)
       at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:349)
       at com.sun.javafx.css.Node_cssStateTransition_Test.testPropertiesResetOnStyleclassChange(Node_cssStateTransition_Test.java:113)