Issue with Dialogs on jdk1.8.0_20

[Sirish Vadala]

Hello All,

Right now I am working on a project running on JavaFX 8 (jdk1.8.0_05) and
working on upgrading it to jdk1.8.0_20. However I am having issues with the
dialogs.

I am using ControlsFX to implement the dialogs.

The following is the error message that I get:
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 java.lang.NoSuchMethodError:
com.sun.javafx.scene.traversal.TraversalEngine.<init>(Ljavafx/scene/Parent;Z)V
at org.controlsfx.control.ButtonBar$2.<init>(ButtonBar.java:413)
 at org.controlsfx.control.ButtonBar.<init>(ButtonBar.java:413)
 at org.controlsfx.control.ButtonBar.<init>(ButtonBar.java:356)
at org.controlsfx.dialog.Dialog.createButtonPanel(Dialog.java:978)
 at org.controlsfx.dialog.Dialog.createCenterPanel(Dialog.java:973)
 at org.controlsfx.dialog.Dialog.buildDialogContent(Dialog.java:894)
at org.controlsfx.dialog.Dialog.show(Dialog.java:321)
 at org.controlsfx.dialog.Dialogs.showSimpleContentDialog(Dialogs.java:847)
 at org.controlsfx.dialog.Dialogs.showConfirm(Dialogs.java:471)
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Thanks. -SV-