org.testng.xml
Interfaces 
IFileParser
IPostProcessor
Classes 
LaunchSuite
LaunchSuite.ExistingSuite
Parser
ResultContentHandler
ResultXMLParser
SuiteGenerator
SuiteXmlParser
TestNGContentHandler
XmlClass
XmlInclude
XmlMethodSelector
XmlPackage
XMLParser
XmlSuite
XmlTest
XmlUtils