javafx.beans.value.ChangeListener

is imported to:

.   bluej.editor.stride
.   bluej.pkgmgr
.   bluej.stride.framedjava.frames
.   bluej.stride.framedjava.slots
.   bluej.stride.generic
.   bluej.stride.slots
.   bluej.utility.javafx
.   greenfoot.guifx
.   greenfoot.guifx.classes