Packages 
Package Description
com.yahoo.application
This package provides an API for building Vespa or jDisc applications programmatically or from an application package source, and instantiating those applications inside the current Java runtime.
com.yahoo.application.container
API for interacting with a locally instantiated jDisc container.
com.yahoo.application.container.handler
API for passing requests and inspecting responses to a locally instantiated container.