org.geotools.feature
Interfaces 
AttributeType
CollectionListener
Feature
FeatureAttributeType
FeatureCollection
FeatureCollectionIteration.Handler
FeatureCollectionType
FeatureFactory
FeatureIndex
FeatureIterator
FeatureType
GeometryAttributeType
PrimativeAttributeType
SimpleFeature
Classes 
AbstractFeatureFactoryImpl
AssociationImpl
AttributeImpl
AttributeTypeBuilder
AttributeTypeFactory
CollectionEvent
ComplexAttributeImpl
DecoratingFeature
DefaultAttributeType
DefaultAttributeTypeFactory
DefaultFeature
DefaultFeatureBuilder
DefaultFeatureCollection
DefaultFeatureCollections
DefaultFeatureFactory
DefaultFeatureType
DefaultFeatureTypeFactory
DefaultFeatureTypeFactory2
Feature.NULL
FeatureCollectionIteration
FeatureCollections
FeatureComparators
FeatureComparators.Index
FeatureComparators.Name
FeatureImpl
FeatureImplUtils
FeatureReaderIterator
FeatureTypeBuilder
FeatureTypeFactory
FeatureTypes
GeometryAttributeImpl
LenientAttribute
LenientBuilder
LenientFeature
LenientFeatureFactory
LenientFeatureFactoryImpl
MultiAttributeType
NameImpl
PropertyImpl
Schema
SimpleFeatureType
ValidatingFeatureFactoryImpl
Exceptions 
IllegalAttributeException
SchemaException