org.eclipse.jpt.core
Interfaces 
JpaAnnotationProvider
JpaDataSource
JpaFactory
JpaFile
JpaModel
JpaNode
JpaPlatform
JpaProject
JpaProject.Config
JpaProject.Updater
JpaStructureNode
MappingKeys
ResourceModel
ResourceModelListener
Classes 
JpaProject.Updater.Null
JptCorePlugin