FULL PRODUCT VERSION :
eduarddrenth@eduarddrenth-TECRA-S11:~$ java -version
java version "1.8.0_92"
Java(TM) SE Runtime Environment (build 1.8.0_92-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.92-b14, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux eduarddrenth-TECRA-S11 3.13.0-88-generic #135-Ubuntu SMP Wed Jun 8 21:10:42 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
fxml:

         <TextFlow fx:id="datamappingxsd".....

Controller#initialize:

         SaxParser parser = new SaxParser();
         XmlContentHandler handler = new XmlContentHandler();
         parser.parse(DatamappingHelper.class.getResourceAsStream(DatamappingHelper.XSD), handler);
         datamappingxsd.getChildren().addAll(handler.getTexts());

XmlContentHandler:

      Text t = new Text("</" + qName + '>');
      t.getStyleClass().add("xmlelement");
      texts.add(t);

Styles.css:

         .xmlelement {
            -fx-text-fill: blue;
         }

StylesheetBuilder#start(Stage):

      Scene scene = new Scene(root);
      String css = StylesheetBuilder.class.getResource("/styles/Styles.css").toExternalForm();
      scene.getStylesheets().add(css);


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- create an fxml with a TextFlow in it with an fx:id
- create a stylesheet with: .blue { -fx-text-fill: blue }
- create a Controler with a TextFlow field, add a Text with a styleClass "blue" in the initialize method
- create an application to run this

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
some blue text
ACTUAL -
some black text

REPRODUCIBILITY :
This bug can be reproduced always.