~/repos/javafx/2.1/scrum/controls/jfx$ java -cp artifacts/sdk/rt/lib/jfxrt.jar com.sun.javafx.css.parser.Css2Bin ./apps/ga-samples/DataApp/DataAppPreloader/src/dataapppreloader/preloader.css
Exception in thread "main" java.lang.InternalError: cannot writeBinary <Value>
  <value>[Lcom.sun.javafx.scene.layout.region.Repeat;@5a9e29fb</value>
  <converter>null</converter>
</Value>

at com.sun.javafx.css.Value.writeBinary(Value.java:568)
at com.sun.javafx.css.Value.writeBinary(Value.java:499)
at com.sun.javafx.css.Declaration.writeBinary(Declaration.java:67)
at com.sun.javafx.css.Rule.writeBinary(Rule.java:130)
at com.sun.javafx.css.Stylesheet.writeBinary(Stylesheet.java:143)
at com.sun.javafx.css.parser.Css2Bin.convertToBinary(Css2Bin.java:49)
at com.sun.javafx.css.parser.Css2Bin.main(Css2Bin.java:30)