Packages 
Package Description
jakarta.activation
Jakarta Activation is used by Jakarta Mail to manage MIME data.
jakarta.jws
This package defines annotations for light-weight web services programming model.
jakarta.jws.soap
This package defines annotations for SOAP binding definition within light-weight web services programming model.
jakarta.transaction
Provides the API that defines the contract between the transaction manager and the various parties involved in a distributed transaction namely : resource manager, application, and application server.
jakarta.xml.bind
Provides a runtime binding framework for client applications including unmarshalling, marshalling, and validation capabilities.
jakarta.xml.bind.annotation
Defines annotations for customizing Java program elements to XML Schema mapping.
jakarta.xml.bind.annotation.adapters
XmlAdapter and its spec-defined sub-classes to allow arbitrary Java classes to be used with Jakarta XML Binding.
jakarta.xml.bind.attachment
This package is implemented by a MIME-based package processor that enables the interpretation and creation of optimized binary data within an MIME-based package format.
jakarta.xml.bind.helpers
Jakarta XML Binding Provider Use Only: Provides partial default implementations for some of the jakarta.xml.bind interfaces.
jakarta.xml.bind.util
Useful client utility classes.
jakarta.xml.soap
Provides the API for creating and building SOAP messages.
jakarta.xml.ws
This package contains the core Jakarta XML Web Services APIs.
jakarta.xml.ws.handler
This package defines APIs for message handlers.
jakarta.xml.ws.handler.soap
This package defines APIs for SOAP message handlers.
jakarta.xml.ws.http
This package defines APIs specific to the HTTP binding.
jakarta.xml.ws.soap
This package defines APIs specific to the SOAP binding.
jakarta.xml.ws.spi
This package defines SPIs for Jakarta XML Web Services.
jakarta.xml.ws.spi.http
Provides HTTP SPI that is used for portable deployment of Jakarta XML Web Services in containers (for example servlet containers).
jakarta.xml.ws.wsaddressing
This package defines APIs related to WS-Addressing.