Packages 
Package Description
jakarta.activation
Jakarta Activation is used by Jakarta Mail to manage MIME data.
jakarta.activation.spi
Provides interfaces which implementations will be used as service providers for other services that used by Jakarta Activation.
jakarta.annotation
This package defines the common annotations.
jakarta.annotation.security
This package contains the security common annotations.
jakarta.annotation.sql  
jakarta.batch.api
Provides APIs used by Batch artifacts.
jakarta.batch.api.chunk
Provides APIs used by artifacts in a Batch chunk step.
jakarta.batch.api.chunk.listener
Provides APIs defining listener artifacts for a Batch chunk step.
jakarta.batch.api.listener
Provides APIs defining Batch job-level and step-level listener artifacts.
jakarta.batch.api.partition
Provides APIs for artifacts specific to a Batch partitioned step.
jakarta.batch.operations
Provides APIs for starting, managing, and viewing results of Batch job executions, along with a set of exceptions.
jakarta.batch.runtime
Provides APIs for viewing the detailed outcomes and metrics of Batch job executions.
jakarta.batch.runtime.context
Provides APIs for context classes allowing data sharing across Batch artifacts within a job instance and within a step.
jakarta.decorator
Annotations relating to decorators.
jakarta.ejb
Contains the Enterprise Bean classes and interfaces that define the contracts between the enterprise bean and its clients and between the enterprise bean and the enterprise bean container.
jakarta.ejb.embeddable
Defines the classes for the enterprise bean Embeddable API.
jakarta.ejb.spi
Defines interfaces that are implemented by the enterprise bean container.
jakarta.el
Provides the API for Jakarta Expression Language 5.0
jakarta.enterprise.concurrent
Classes and interfaces that make up the Jakarta Concurrency specification.
jakarta.enterprise.concurrent.spi
Interfaces for third-party providers of thread context to implement.
jakarta.enterprise.context
Annotations and interfaces relating to scopes and contexts.
jakarta.enterprise.context.control  
jakarta.enterprise.context.spi
The custom context SPI.
jakarta.enterprise.event
Annotations and interfaces relating to events.
jakarta.enterprise.inject  
jakarta.enterprise.inject.build.compatible.spi
The build compatible extension SPI.
jakarta.enterprise.inject.literal  
jakarta.enterprise.inject.se  
jakarta.enterprise.inject.spi
The portable extension integration SPI.
jakarta.enterprise.inject.spi.configurator  
jakarta.enterprise.lang.model
The core interfaces of the language model that represent annotations and annotation targets.
jakarta.enterprise.lang.model.declarations
Interfaces that represent declarations.
jakarta.enterprise.lang.model.types
Interfaces that represent types.
jakarta.enterprise.util
Contains shared, general-purpose helper classes and annotations.
jakarta.faces  
jakarta.faces.annotation  
jakarta.faces.application  
jakarta.faces.component  
jakarta.faces.component.behavior  
jakarta.faces.component.html
Specialized user interface component classes for HTML.
jakarta.faces.component.search  
jakarta.faces.component.visit  
jakarta.faces.context  
jakarta.faces.convert  
jakarta.faces.el  
jakarta.faces.event  
jakarta.faces.flow  
jakarta.faces.flow.builder  
jakarta.faces.lifecycle  
jakarta.faces.model  
jakarta.faces.push  
jakarta.faces.render  
jakarta.faces.validator  
jakarta.faces.view  
jakarta.faces.view.facelets  
jakarta.faces.webapp  
jakarta.inject
This package specifies a means for obtaining objects in such a way as to maximize reusability, testability and maintainability compared to traditional approaches such as constructors, factories, and service locators (e.g., JNDI). This process, known as dependency injection, is beneficial to most nontrivial applications.
jakarta.interceptor
Contains annotations and interfaces for defining interceptor methods and interceptor classes, and for binding interceptor classes to target classes.
jakarta.jms
The Jakarta Messaging API provides a common way for Java programs to create, send, receive and read an enterprise messaging system's messages.
jakarta.json
Provides an object model API to process JSON.
jakarta.json.bind
Provides JSON Binding API, which enables binding Java objects from and to JSON documents.
jakarta.json.bind.adapter
Defines adapter related classes.
jakarta.json.bind.annotation
Defines annotations for customizing the mapping between Java program elements and JSON documents.
jakarta.json.bind.config
Defines strategies and policies for customizing the mapping between Java program elements and JSON documents.
jakarta.json.bind.serializer
Defines serializer depending classes.
jakarta.json.bind.spi
Service Provider Interface (SPI) to plug in implementations of JSON Binding API JsonbBuilder objects.
jakarta.json.spi
Service Provider Interface (SPI) to plug in implementations for JSON processing objects.
jakarta.json.stream
Provides a streaming API to parse and generate JSON.
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.mail
The Jakarta Mail API provides classes that model a mail system.
jakarta.mail.event
Listeners and events for the Jakarta Mail API.
jakarta.mail.internet
Classes specific to Internet mail systems.
jakarta.mail.search
Message search terms for the Jakarta Mail API.
jakarta.mail.util
Jakarta Mail API utility classes.
jakarta.persistence
Jakarta Persistence is the API for the management for persistence and object/relational mapping.
jakarta.persistence.criteria
Jakarta Persistence Criteria API
jakarta.persistence.metamodel
Jakarta Persistence Metamodel API
jakarta.persistence.spi
SPI for Jakarta Persistence providers
jakarta.resource
The jakarta.resource package is the top-level package for the Jakarta™ Connectors specification.
jakarta.resource.cci
The jakarta.resource.cci package contains API specification for the Common Client Interface (CCI).
jakarta.resource.spi
The jakarta.resource.spi package contains APIs for the system contracts defined in the Jakarta Connectors specification.
jakarta.resource.spi.endpoint
This package contains system contracts for service endpoint interactions.
jakarta.resource.spi.security
The jakarta.resource.spi.security package contains APIs for the security management contract.
jakarta.resource.spi.work
This package contains APIs for the Work Management, Generic and Security Work Context contracts.
jakarta.security.auth.message
This package defines the core interfaces of Jakarta Authentication.
jakarta.security.auth.message.callback
This package defines callback interfaces that may be used by a pluggable authentication mechanisms (aka message authentication modules) to interact with the container (aka message processing runtime) that invoked the module.
jakarta.security.auth.message.config
This package defines the interfaces implemented by Jakarta Authentication compatible configuration systems.
jakarta.security.auth.message.module
This package defines the interfaces implemented by Jakarta Authentication compatible authentication mechanisms.
jakarta.security.enterprise
The main Jakarta Security package.
jakarta.security.enterprise.authentication.mechanism.http
The HTTP authentication mechanism API package.
jakarta.security.enterprise.authentication.mechanism.http.openid  
jakarta.security.enterprise.credential
The Identity Store Credential API package.
jakarta.security.enterprise.identitystore
The identity store API package.
jakarta.security.enterprise.identitystore.openid  
jakarta.security.jacc
This package contains the Jakarta Authorization API
jakarta.servlet
The jakarta.servlet package contains a number of classes and interfaces that describe and define the contracts between a servlet class and the runtime environment provided for an instance of such a class by a conforming servlet container.
jakarta.servlet.annotation
The jakarta.servlet.annotation package contains a number of annotations that allow users to use annotations to declare servlets, filters, listeners and specify the metadata for the declared component.
jakarta.servlet.descriptor
Provides programmatic access to a web application's configuration information that was aggregated from the web.xml and web-fragment.xml descriptors.
jakarta.servlet.http
The jakarta.servlet.http package contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtime environment provided for an instance of such a class by a conforming servlet container.
jakarta.servlet.jsp  
jakarta.servlet.jsp.el  
jakarta.servlet.jsp.jstl.core
Classes and interfaces related to the core tag library component of the Jakarta Standard Tag Library.
jakarta.servlet.jsp.jstl.fmt
Classes and interfaces related to the locale sensitive formatting tag library component of the Jakarta Standard Tag Library.
jakarta.servlet.jsp.jstl.sql
Classes and interfaces related to the sql tag library component of the Jakarta Standard Tag Library.
jakarta.servlet.jsp.jstl.tlv
Reusable Tag Library Validator (TLV) classes provided by the Jakarta Standard Tag Library.
jakarta.servlet.jsp.tagext  
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.validation
Top level package of the Jakarta Bean Validation API.
jakarta.validation.bootstrap
Package containing bootstrap specific objects.
jakarta.validation.constraints
Contains all the Jakarta Bean Validation provided constraints also called built-in constraints.
jakarta.validation.constraintvalidation
Package containing constructs specific to constraint validators.
jakarta.validation.executable
Package related to the control and execution of executable validation.
jakarta.validation.groups
A group defines a subset of constraints.
jakarta.validation.metadata
Package containing all objects specifically used and returned by the metadata API.
jakarta.validation.spi
Package containing objects specific to the interaction between the Jakarta Bean Validation bootstrapping process and Jakarta Bean Validation providers.
jakarta.validation.valueextraction
Package containing objects dedicated to extract values to validate from containers.
jakarta.websocket
This package contains all the Jakarta WebSocket APIs common to both the client and server side.
jakarta.websocket.server
This package contains all the Jakarta WebSocket APIs used only by server side applications.
jakarta.ws.rs
High-level interfaces and annotations used to create RESTful service resources.
jakarta.ws.rs.client
The JAX-RS client API
jakarta.ws.rs.container
Container-specific JAX-RS API.
jakarta.ws.rs.core
Low-level interfaces and annotations used to create RESTful service resources.
jakarta.ws.rs.ext
APIs that provide extensions to the types supported by the JAX-RS API.
jakarta.ws.rs.sse
Server-Sent Events related API.
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.