java.io.IOException

is imported to:

.   bluej
.   bluej.classmgr
.   bluej.collect
.   bluej.compiler
.   bluej.debugger.jdi
.   bluej.debugmgr
.   bluej.editor
.   bluej.editor.moe
.   bluej.editor.stride
.   bluej.extensions
.   bluej.extensions.editor
.   bluej.groupwork
.   bluej.groupwork.actions
.   bluej.groupwork.git
.   bluej.groupwork.svn
.   bluej.groupwork.ui
.   bluej.parser
.   bluej.parser.lexer
.   bluej.parser.nodes
.   bluej.pkgmgr
.   bluej.pkgmgr.actions
.   bluej.pkgmgr.target
.   bluej.pkgmgr.target.role
.   bluej.runtime
.   bluej.stride.framedjava.ast
.   bluej.stride.framedjava.convert
.   bluej.stride.framedjava.frames
.   bluej.stride.generic
.   bluej.terminal
.   bluej.utility
.   bluej.utility.javafx
.   bluej.views
.   greenfoot
.   greenfoot.collision
.   greenfoot.core
.   greenfoot.export
.   greenfoot.export.mygame
.   greenfoot.guifx
.   greenfoot.guifx.export
.   greenfoot.guifx.images
.   greenfoot.importer.scratch
.   greenfoot.platforms.ide
.   greenfoot.platforms.standalone
.   greenfoot.sound
.   greenfoot.util
.   greenfoot.vmcomm
.   lang.stride
.   threadchecker