org.apache.xpath
Interfaces 
DOMOrder
ExpressionNode
ExpressionOwner
ExtensionsProvider
WhitespaceStrippingElementMatcher
XPathFactory
XPathVisitable
Classes 
Arg
CachedXPathAPI
DOM2Helper
DOMHelper
Expression
NodeSet
NodeSetDTM
SourceTree
SourceTreeManager
VariableStack
XPath
XPathAPI
XPathContext
XPathVisitor
Exceptions 
FoundIndex
XPathException
XPathProcessorException