Packages 
Package Description
javax.xml.registry
This package and its sub-packages describe the API classes and interfaces for the Jakarta XML Registries API.
javax.xml.registry.infomodel
This package describes the information model for the Jakarta XML Registries API.
javax.xml.rpc
This package contains the core Jakarta XML RPC for the client programming model.
javax.xml.rpc.encoding
This package defines APIs for the extensible type mapping framework.
javax.xml.rpc.handler
This package defines APIs for SOAP Message Handlers
javax.xml.rpc.handler.soap
This package defines APIs for SOAP Message Handlers
javax.xml.rpc.holders
This package contains the standard Java Holder classes.
javax.xml.rpc.server
This package defines APIs for the servlet based Jakarta XML RPC endpoint model.
javax.xml.rpc.soap
This package defines APIs specific to the SOAP binding.