org.apache.maven.project
Interfaces 
MavenProjectBuilder
MavenProjectHelper
ModelUtils.ModelPartCloner
ProjectBuilderConfiguration
Classes 
DefaultMavenProjectBuilder
DefaultMavenProjectHelper
DefaultProjectBuilderConfiguration
MavenProject
MavenProjectBuildingResult
ModelUtils
ProjectSorter
ProjectUtils
Exceptions 
DuplicateProjectException
InvalidProjectModelException
MissingProjectException
ProjectBuildingException