JavaFX 1.2 Can Run on linux

This is what i'am waiting for, JavaFX can run on linux.
But when i was trying to use transparent fill to Stage, there is still a bug.

Stage {
title: "Testing Transparent"
width: 250
height: 80
scene: Scene {
content: Text {
font : Font {
size : 24
}
x: 10, y: 30
content: "Testing Transparent"
}
}
opacity:0.0
}

result on the console:
Warning: Transparent windows are not supported by the current platform.

Is this JavaFX bugs or conflict whith Compiz, i do not know. May be some know about this?