Most Specific Classes are:

ASTUtility
AbstractAction
AbstractOperation
AbstractOperation . ItemLabel
ActionListener
Actor
ActorDelegate
ActorVisitor
AddToWorldHelper
Address
AnchorPane
AnnotatableTextField
Application
ApplicationListener
ArgumentListHandler
AssertPanel . AssertInfo
AssistContent
AssistContent . ParamInfo
AssistContent . ParamInfo . JavadocCallback
AudioLine
BArray
BClass
BClassTarget
BConstructor
BDependency
BField
BMethod
BObject
BPackage
BProject
BSPNodeCache
BasicParseTest
BirdseyeManager
BlueJEvent
BlueJEventListener
BlueJPropStringSource
BlueJSyntaxView
BlueJTheme
BooleanAndRemoveAndUpdate
Boot
BorderPane
CPM
CallExpressionSlotFragment . ReplaceKeywordCallWithFrame
CallHistory
Canvas
CanvasPane . ShapeDescription
Cat
ChangeListener
ChoiceAndFile
Circle
ClassDisplaySelectionManager
ClassListener
ClassLoader
ClassNameVerifier
ClassPathEntry
ClassRole
ClipCache
ClipData
Closeable
CodeElement
CodeElement . LocalParamInfo
CodeError
CodeFrame
CodeOverlayPane
CodePad . HistoryRow
CodePad . HistoryRow . IndentedRow
CollectUtility . ProjectDetails
CollisionChecker
CollisionQuery
Color
Command
CommitAction . CommitWorker
CommitFilter
Comparable
CompareWrapper
CompileListener
CompileObserver
Compiler
CompletionCalculator
CompletionTest
ConstructorOrMethodReflective
ControlPanel . ControlPanelListener
ControlPanelListener
ConversionWarning
ConversionWarning . UnsupportedModifier
ConversionWarning . UnsupportedModifier . UnsupportedFeature
ConvertResultDialog
CopyableHeaderItem
Correction . StringAndDist
Correction . StringAndDist . CorrectionInfo
Correction . StringAndDist . CorrectionInfo . SimpleCorrectionInfo
CursorFinder
DataCollector
DataCollector . NamedTyped
DataCollectorImpl
Database
Debug
DebugInfo
DebugUtil
DebugVarInfo
DebuggableFrame
Debugger
DebuggerClass
DebuggerEvent . BreakpointProperties
DebuggerField
DebuggerListener
DebuggerObject
DebuggerResult
DebuggerTerminal
DebuggerTestResult
DebuggerThread
DebuggerThreadListener
Demo
Dependency
DependencyListener
DepthRef
DiagnosticWithShown
Dialog
DialogManager
DialogManager . MessageAndButtons
DocAndPositions
DocPathEntry
DocuGenerator
DocuGenerator . DocuRunStarter
DocumentAction
DoubleBinding
DrawInfo
DrawVersionOnSplash
EditEvent
EditedFileInfo
Editor
EditorBridge
EditorManager
EditorParser . TypeParam
EditorParserTest
EditorWatcher
Element
EntityResolver
ErrorAndFixDisplay
ErrorAndFixDisplay . ErrorFixListener
ErrorDisplay
ErrorInfo
ErrorShower
ErrorUnderlineCanvas
ErrorUnderlineCanvas . HyperlinkInfo
ErrorUnderlineCanvas . HyperlinkInfo . ErrorInfo
ErrorUnderlineCanvas . HyperlinkInfo . ErrorInfo . UnderlineInfo
ErrorUnderlineCanvas.UnderlineInfo
EventListener
EventObject
Exception
ExceptionSourceLocation
ExecControls
ExecServer
ExecutionEvent
ExistingScenarioChecker
ExistingScenarioChecker . ScenarioWorker
ExportInfo . ProjectInfo
ExpressionInformation
ExpressionSlot
ExtendsDepInfo
Extension
ExtensionBridge
ExtensionClassTargetPainter
ExtensionDescription
ExtensionEvent
ExtensionEventListener
ExtensionMenu
ExtensionWrapper
ExtensionsDialog
ExtensionsDictionary
ExtensionsDictionary . Entry
ExternalAppLauncher
FXAbstractAction
FXCompileObserver
FXPlatformRunnable
FXWorker
FXWorker . ThreadVar
FieldInfo
FieldReflective
FileFilter
FileReader
FileUtility
FileView
FilenameFilter
FindNavigator
FixSuggestion
FocusParent
Font
ForHandler
FormBodyPart
FormalParameter
FormalParameters
FrameCanvas
FrameCatalogue . Updater
FrameContentItem
FrameEditor . QueuedError
FrameEffects
FrameHelper
FrameSelection
FrameShelfStorage
FrameState
FrameTypeCheck
GClassNode
GenTypeClass
GenTypeParameter
GenTypeSolid
GetAtTest . BadLeaf
GifImage
GifImage . Rectangle
GifImage . Rectangle . GifDecoder
GifImage . Rectangle . GifDecoder . GifFrame
GitUtilities
GraphicsUtilities
GreenfootFrameUtil
GreenfootFrameUtil . XMLParseResult
GreenfootImage
GreenfootLauncherDebugVM
GreenfootRecorder
GreenfootSound
GreenfootStage . NewActor
GreenfootUtil
GreenfootUtilDelegate
GridCollisionChecker . Cell
GridCollisionChecker . Cell . GridWorld
GridCollisionChecker . Cell . GridWorld . Statistics
GridCollisionChecker . Cell . GridWorld . WrappingGridWorld
GridLayout
GridPane
GuiHandler
HBox
HDTimer
HeaderItem
HighlightedBreakpoint
Hint
History
HistoryInfo
HistoryRow
Icon
IfBuilder
ImageCache
ImageListEntry
ImageVisitor
Import
ImportElement . ImportFragment
ImportScanner
ImportScanner . PackageInfo
ImportsCollection
ImportsCollection . LocatableImport
IncrementalParseTest
IndentCalculator
InfoParser . MethodDesc
InfoParser . MethodDesc . UnresolvedVal
InitConfig
InnerNode
InspectorManager
Installer . InstallThread
Installer . InstallThread . ProgressTrackerStream
Installer . InstallThread . ProgressTrackerStream . UpdateProgress
InstallerProps
IntCounter
IntegerBinding
InteractionManager . FileCompletion
InvocationListener
InvokeListener
InvokerCompiler
InvokerRecord
JComponent
JFileChooser
JFrame
JPanel
JarCreator
JarOutput
Java11BasicParseTest
JavaContainerDebugHandler
JavaEntity
JavaErrorCodes
JavaFXThreadingRule . OnJFXThreadStatement
JavaFXUtil
JavaFragment
JavaFragment . PosInSourceDoc
JavaNames
JavaParser
JavaReflectiveTests . Inner
JavaSingleLineDebugHandler
JavaSource
JavaSource . SourceLine
JavaSource . SourceLine . Recorder
JavaStrideParser . WarningManager
JavaToStrideTest
JavaTokenTypes
JavaUtils
JavaUtils14
Javadoc
JavadocResolver
JavadocResolver . AsyncCallback
JavadocUnit
JdiUtils
JobQueue
KeyBindingsPanel . ActionInfo
KeyboardManager
KeywordModifier . AnnotationModifier
LayoutManager
LayoutManager2
LayoutRect
LeftRight
Line
LineAction
LineListener
ListNode
Loader
LocatableElement . LocationMap
LocatableToken
LogHistoryListener
LoopVarIterator
Map
MemberView
MenuButton
MenuGenerator
MenuItem
MenuItemAndShow
MenuItems
MessageCalculator
MethodCallDesc
MethodDocs
MethodRef
MicLevelGrabber
Middle
ModificationToken
Modifier
MoeEditorParameters
MoeErrorManager
MoeErrorManager . ErrorDetails
MoeSyntaxDocument
MouseInfo
MouseInfoVisitor
MousePollingManager
MouseTrackingOverlayPane . MousePositionListener
MultiLineStringDimensions
MyGameClient
NameTransform
NamedValue
NetworkTest
NewClassInfo
NewImageClassInfo
NodeChangeRecord
NodeStructureListener
ObjectBenchInterface
ObjectInfo
OpPrec
OutputStream
PackageFile
PackageFileFactory
PackageListener
PackageUI
Pane
ParamFragment
ParameterList
ParseParams
ParseUtils
ParseUtils . DepthRef
ParseUtils . DepthRef . AssistContentConsumer
Parser
Parser . DummyNameGenerator
Parser . DummyNameGenerator . ConversionResult
ParserMessageHandler
Path
Person
PickActorHelper
PickListener
Picture
PkgMgrAction
PkgMgrFrame.PkgMgrPane
PkgMgrPane
PlainVarReference
Plugin
Polygon
Position
PossibleLink
PrefMgr
PrefMgrDialog
PrefPanelListener
Preloader
PrintChoices
PrintWriter
PriorityManager
ProcessWaiter
ProgressTrackingPart . ProgressTrackingFileBody
ProjectManager
ProjectManager . ProjectAPIVersionAccess
ProjectUtils
PropParser
Properties
ProxyAuthInfo
PublishEvent
PushAction . PushWorker
Queue
Queue . Elem
RBTreeNode
ReadOnlyProjectProperties
Reader
RecallableFocus
Rect
Rectangle
Reflective
RemoveAndUpdate
RemoveFromWorldHelper
Repository
ResourceDescriptor
ResultWatcher
Revision
Run
RunListener
Runnable
RunnableThrows
RuntimeException
SaveResult
SavedComment
ScenarioInfo
ScenarioSaver
ScopeColors
ScopeHighlightingPrefDisplay
ScopeInfo
ScopeInfo . SingleNestedScope
ScratchImport
ScratchObject
ScrollFreeTextArea
ScrollPane
Selection
SelectionController
Serializable
SetWorldHelper
SharedTransition
Shell
Sidebar
Sidebar . SidebarLabel
SimulationListener
SimulationRunnable
SimulationStateListener
SingleCanvasFrame . PlusMinus
SlotParent
SlotValueListener
SortedMenuItem
Sound
SoundExceptionHandler
SoundFactory
SoundPlaybackListener
SoundRecorder
SoundRecorderControls . Player
SoundRecorderControls . Player . SoundPanel
SoundUtils
SourceFileInfo
SourceLocation
SourceSpan
SplitInfo
Square
StackPane
Stage
StatementHandler
StaticInner
StatusHandle
StatusListener
StatusTableModel
StringIter
StringIterator
StringOrRef
StructuredCompletionCalculator
Styleable
StyleableProperties
SubClassTests . SuperClass
SubClassTests . SuperClass . SubClass
SubClassTests . SuperClass . SubClass . IndependentClass
SubClassTests . SuperClass . SubClass . SubSubClass
SuggestedFollowUpDisplay
SuggestionListListener
SuggestionListParent
SvnCommitAllCommand . StatusRef
SwingNode
SwingOrFXMenu
SwitchHandler
TCPlugin . TCTaskListener
Tab
TabMenuManager
TargetListener
TeamAction
TeamActionGroup
TeamSettings
TeamSettingsController
TeamUtils
TeamViewFilter
TeamworkCommand
TeamworkCommandResult
TeamworkProvider
TemplateInfo
TemplatesList
Terminal . TextAreaStyle
Terminal . TextAreaStyle . StderrStyle
TestCase
TestExpressionSlot
TestHangingFlowPane
TestNodeInfo
TestRange
TestResultsWithRunTime
TestRule
TestTypeSlot
TestValueCollection . TestVar
TextAnalyserTest
TextAnalyzer
TextField
TextLabel
TextLocation
TextOverlayPosition
TextOverlayPosition . Line
TextParser . Operator
TextParserTest
TextSlot.Underline
TextUtilities
Thread
ThreeLines
ThrowsTypeFragment
TilePane
TimeTracker
Token
TokenStream
TopLevelCodeElement
TraverseStrategy
Triangle
TypeArgumentEntity
TypeList
TypeParamView
UndeclaredVariableLvalueError . ChangeAssignmentToDeclarationAndInitialisation
UndeclaredVariableLvalueError . ChangeAssignmentToDeclarationAndInitialisation . AddFieldDeclaration
UnderlineContainer
UnderlineContainer . Underline
UnderlineInfo
UnitTestAnalyzer
UnknownTypeError . TypeCorrectionInfo
UnknownTypeError . TypeCorrectionInfo . ImportSingleFix
UnknownTypeError . TypeCorrectionInfo . ImportSingleFix . ImportPackageFix
UpdateAction . UpdateWorker
UpdateFilter
UpdateListener
UpdateResults
UpdateStatus
UserInfo
UserInfoVisitor
UserLibInfo
Utility
VBox
VMCommsSimulation
VMEventHandler . ThreadEvent
ValueCollection
ValueEntity
VarDisplayInfo
Version
VersionCheckInfo
View
View . MemberElement
WindowOverlayPane
World
WorldCreator
WorldEvent
WorldHandlerDelegate
WorldLocator
WorldRenderer
WorldVisitor
WrapDescent
Writer
blek
initException
javafx.application.Application
javafx.scene.control.ScrollPane
junit.framework.TestCase