What Comes After Jakarta EE 11?

Jakarta EE 11 is now here and work on Jakarta progresses. This is a perfect time to begin exploring the horizons of Jakarta EE 12 and how you can help make it reality.

We will guide you on how to begin contributing towards Jakarta EE 12. We will cover ways of contributing, what paperwork is needed as well as the likely possibilities for Jakarta EE 12 including high level themes, platform level changes, and some detailed features. Some technologies that might change include Jakarta Security, Concurrency, and Messaging. New APIs that could be added include Jakarta Configuration, NoSQL, and RPC. We will talk about non-specification projects such as the Examples, Tutorial, and Starter.

Bring your thinking caps!

1. What Comes After Jakarta EE 11? Reza Rahman Jakarta EE Ambassador, Author, Speaker @reza_rahman, reza_rahman@mail.com
2. Ambassadors’ Jakarta EE 12 Contribution Guide https://jakartaee-ambassadors.io/guide-to-contributing-to-jakarta-ee-12 @jee_ambassadors
3. Jakarta EE 10 in Context • CDI Alignment • @Asynchronous, @Schedule, @Lock, @MaxConcurrency in Concurrency, @MessageListener in Messaging, @RolesAllowed in Security • Better CDI support in Batch, REST • Java SE Alignment • CompletionStage in Concurrency • Bootstrap APIs for REST, Messaging • Closing standardization gaps • OpenID Connect, JWT, in-memory identity store, batch job definition Java API, @ManagedExecutorDefinition, more SQL support, multipart/form-data • Core/Microservices Profile • Deprecation/removal • EJB Entity Beans, embeddable EJB container, deprecated Servlet/Faces/CDI features • Innovation • Repositories, NoSQL, MVC, Configuration, gRPC Made it! On the way Gap
4. Jakarta EE 11 in Context • CDI Alignment • @Schedule, @Lock, @MaxConcurrency in Concurrency, @MessageListener in Messaging, @RolesAllowed in Security • Better CDI support in REST, Persistence, Concurrency • Java SE Alignment • Adapting to Records, Virtual Threads • Bootstrap API for Messaging • Modularity, standalone/modernized TCKs • Closing standardization gaps • In-memory identity store, JWT, batch job definition Java API, @Service • Deprecation/removal • JAX-WS (SOAP), JAXB (XML), CORBA, @ManagedBean, Security Manager, EJB • Innovation • Repositories, NoSQL, MVC, Configuration, gRPC Made it! On the way Gap
5. Jakarta EE 12 Possibilities • CDI Alignment • @Schedule, @Lock, @MaxConcurrency in Concurrency, @MessageListener in Messaging, @RolesAllowed in Security • Better CDI support in REST, Concurrency • Java SE Alignment • Bootstrap API for Jakarta EE, bootstrap API for Messaging • Modularity, standalone/modernized TCKs • Closing standardization gaps • HTTP/3, JWT, batch job definition Java API, @Service • Deprecation/removal • Security Manager, Application Client Container, EJB • Innovation • Configuration, NoSQL, MVC, gRPC, Agentic AI, LLM, MCP
6. Jakarta Concurrency • CDI based, modernized equivalents for EJB @Schedule, @Lock • Adding @MaxConcurrency • CDI context propagation
7. @Schedule in CDI Beans @ApplicationScoped public class UploadDirectoryScanner { @Schedule(cron = "*/15 * * * * *") public void processFiles() { ... } }
8. CDI Based @Lock @ApplicationScoped @Lock(READ) public class CountryInfoService { ... public List<String> getStates(String country) { return countryStatesMap.get(country); } ... @Lock(WRITE) public void setStates(String country, List<String> states) { countryStatesMap.put(country, states); } }
9. Jakarta Messaging • CDI based, modernized @MessageListener • Jakarta Messaging Lite for cloud native use cases • Standalone bootstrap API • AMQP interoperability
10. @MessageListener Example @ApplicationScoped @MaxConcurrency(10) public class HandlingEventRegistrationAttemptConsumer { @MessageListener( destinationLookup="jms/HandlingEventRegistrationAttemptQueue", selector="source = 'mobile'", batchSize=10, orderBy=TIMESTAMP, retry=5, retryDelay=7000, deadLetterQueue="jms/DeadLetterQueue") public void onEventRegistrationAttempt( HandlingEventRegistrationAttempt... attempts) { ... } }
11. Bootstrap API for Jakarta Messaging JmsContainer container = JmsContainerFactory.newInstance(); ... JMSContext jmsContext = container.getJmsContext(); Destination handlingEventQueue = container.getDestination( “jms/HandlingEventRegistrationAttemptQueue” true); ... jmsContext.createProducer() .setDisableMessageID(true) .setDisableMessageTimestamp(true) .setStringProperty("source", source) .send(handlingEventQueue, attempt); ... container.close();
12. Jakarta Security • JWT alignment • CDI based, modernized equivalents for @RolesAllowed • EL-enabled authorization annotation
13. EL Enabled Security Annotations @Authorized("hasRoles('Manager') && schedule.officeHours") public void transferFunds(); @Authorized("hasRoles('Manager') && hasAttribute('directReports', employeeId)") public double getSalary(long employeeId);
14. Jakarta Configuration • Externalizing application configuration • Built-in stores • Property files/YAML, Java system properties, environment variables • Extensible stores • Kubernetes Secrets • Secure cloud storage (such as Azure Key Vault) • NoSQL stores (such as Azure Redis) • Relational databases • @Inject into code • Look up from Java • Reference in EL • Reference in XML • Moving MicroProfile Config to Jakarta EE is a long-standing community wish
15. Jakarta Configuration Examples @Inject @Size(min=4, max=20) @ConfiguredValue(name = “admin.group”, default=“admin”) private String adminGroup; persistence.provider=org.hibernate.ejb.HibernatePersistence persistence.datasource=java:app/jdbc/CargoTrackerDatabase persistence.schema.generation.database.action=create <data-source> <name>java:app/jdbc/CargoTrackerDatabase</name> <class-name>org.apache.derby.jdbc.EmbeddedDriver</class-name> <url>jdbc:derby:${temp.dir}/cargo-tracker-database</url> </data-source>
16. Jakarta NoSQL • Specification for accessing NoSQL databases • Mapping/template API akin to Jakarta Persistence • API variants by NoSQL taxonomy • Key-value pair, column family, document, and graph • Repositories, validation, externalized configuration
17. Jakarta NoSQL Example @Entity public class Order { @Id private long id; @Column @NotBlank private String description; @Column @NotEmpty private List<OrderLine> orderLines; @Column @NotNull private Customer customer; @Column @NotNull private Address address; template.insert(order); ... List<Order> results = template.select(Order.class) .where("description").like("^Pinball").result(); logger.info("Found orders for pinball: " + results.size());
18. Jakarta MVC • Standard action-based web framework • Jakarta Faces continues to evolve separately • Standalone, “prospective specification” in Jakarta EE 11 • Model • CDI, Validation • View • Facelets, Jakarta Server Pages • Controller • Based on Jakarta REST
19. Jakarta MVC Example @Controller @Path("/") @View("my-index.xhtml") public class Bookstore { @Inject private Models model; @Inject private BookService service; ... @GET public void index() { ... model.put(“books”, books); } }
20. Jakarta Agentic AI • Standard programming model for AI agents • Minimal LLM façade • Integration with CDI, Validation, JSON, Persistence, Data • Standalone specification • Dynamic workflows
21. Agent Example @Agent public class QuestionAgent { @Inject LargeLanguageModel model; @Trigger void onQuestion(Question question) { if (question.text() == null || question.text().isBlank()) throw new IllegalArgumentException("Question text is required."); } @Action Answer generate(Question question) { return new Answer(model.query("Answer concisely: {}", question.text())); } }
22. Many Others • @Startup in CDI • Batch job definition API • Built-in @Service CDI stereotype • Make persistence.xml optional/empty marker • Bootstrap API for Jakarta EE
23. Job Definition API Example Job job = new JobBuilder(jobName).property("jobk1", "J") .listener("jobListener1", new String[]{"jobListenerk1", "#{jobParameters['jobListenerPropVal']}"}, .step(new StepBuilder(stepName) .properties(new String[]{"stepk1", "S"}, new String[]{"stepk2", "S"}) .batchlet(batchlet1Name, new String[]{"batchletk1", "B"}, new String[]{"batchletk2", "B"}) .listener("stepListener1", stepListenerProps) .stopOn("STOP").restartFrom(stepName).exitStatus() .endOn("END").exitStatus("new status for end") .failOn("FAIL").exitStatus() .nextOn("*").to(step2Name) .build()) ... .build();
24. Built-In @Service Stereotype @ApplicationScoped @Transactional @Lock(READ_WRITE) @MaxConcurrency(10) @Monitored // Vendors should add their own sensible functionality @Stereotype @Target(TYPE) @Retention(RUNTIME) public @interface Service {}
25. Bootstrap API for Jakarta EE public class Application { public static void main(String[] args) { JakartaApplication.run(); } }
26. Beyond Specification Work • More custom websites for key Jakarta EE technologies • Like https://beanvalidation.org, http://www.cdi-spec.org • Jakarta EE Examples • Quickly getting working code for most use cases • Jakarta EE Tutorial • The official free resource to learn Jakarta EE • Jakarta Starter • Helping developers getting started quickly • Eclipse Cargo Tracker • End-to-end application demonstrating architectural practices like Domain-Driven Design
27. Ways of Contributing • Follow Jakarta EE technologies that interest you and share opinion • https://jakarta.ee/connect/mailing-lists/ • Advocate for a specific change or feature • https://jakarta.ee/projects/ • Help implement a change in API, specification, TCK, or implementation • Sign Eclipse Contributor Agreement • https://www.eclipse.org/legal/ECA.php • Becoming a committer comes much later
28. Summary • Jakarta EE 11 has important changes • One of the key motivations to move Java EE to Jakarta EE is greater community contribution • Jakarta EE work is ongoing - time to get involved
29. Resources • JakartaOne Livestream recordings • https://jakartaone.org • Jakarta EE Community mailing list • https://accounts.eclipse.org/mailing-list/jakarta.ee-community • Jakarta EE Twitter handle • https://twitter.com/JakartaEE • Jakarta Tech Talks • https://www.meetup.com/jakartatechtalks_