org.argouml.model.uml
Classes 
AbstractUmlModelFactory
AbstractWellformednessRule
ClassListenerHashMap
CopyFunction
CopyHelper
EventKey
EventListenerHashMap
EventListenerList
EventTreeDefinition
ExplorerNSUMLEventAdaptor
RefBaseObjectProxy
RefPackageProxy
Uml
UmlFactory
UmlHelper
UmlModelEventPump
UmlModelListener
Exceptions 
IllegalModelElementConnectionException
UmlException