java.util.Map.Entry

is imported to:

.   bluej.editor.moe
.   bluej.groupwork
.   bluej.stride.framedjava.elements
.   bluej.stride.framedjava.frames
.   bluej.stride.slots
.   bluej.utility
.   bluej.utility.javafx
.   greenfoot.collision
.   greenfoot.guifx.classes
.   greenfoot.util