javafx.collections.ObservableList

is imported to:

.   bluej
.   bluej.classmgr
.   bluej.debugmgr
.   bluej.debugmgr.inspector
.   bluej.debugmgr.objectbench
.   bluej.editor.moe
.   bluej.editor.stride
.   bluej.extmgr
.   bluej.groupwork.ui
.   bluej.pkgmgr
.   bluej.pkgmgr.target.role
.   bluej.prefmgr
.   bluej.stride.framedjava.frames
.   bluej.stride.framedjava.slots
.   bluej.stride.generic
.   bluej.stride.slots
.   bluej.testmgr
.   bluej.utility.javafx
.   bluej.utility.javafx.binding