Paving the way with Jakarta EE and apache TomEE at cloudconferenceday
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César Hernández, a senior software engineer at Tomitribe and a Java Champion, discusses the transition from Java EE to Jakarta EE and the new features introduced in Apache TomEE. The document outlines key statistics regarding the amount of code, contributions, and the technical aspects of the transition, including namespace changes and implementation plans. It emphasizes cloud-native application development and how developers can contribute to the Jakarta EE community.
Paving the way with Jakarta EE and apache TomEE at cloudconferenceday
- 1. @CesarHgt @tomitribe César Hernández Paving the way with Jakarta EE and Apache TomEE
- 2. @CesarHgt @tomitribe Who am I? César Hernández ● Senior Software Engineer at Tomitribe ● Java Champion & Oracle Groundbreaker Ambassador ● Duke’s Choice Award 2016, 2017 ● Oracle Certified Professional ● +14 experience with Java Enterprise ● Apache TomEE, Eclipse Jakarta EE Committer, contributor for Microprofile. ● Open Source advocate, teacher and public speaker
- 3. @CesarHgt @tomitribe From J2EE to Jakarta EE
- 4. @CesarHgt @tomitribe From Java EE to Jakarta EE
- 5. @CesarHgt @tomitribe Some Eclipse (Java) Projects
- 6. @CesarHgt @tomitribe Eclipse Foundation overview https://www.eclipse.org/membership/documents/eclipse-foundation-overview.pdf 360+ 275+ 1550+ 195M+ 15 30
- 8. @CesarHgt @tomitribe How big is that? • Jakarta EE • 5,5 million lines of code • 2,2 million lines of comments • 61k files • TCK (Test Suite) • 4,6 million lines of code • 1,1 million lines of comments • 34k files
- 9. @CesarHgt @tomitribe 13,5 million lines of code in 95k files.
- 10. @CesarHgt @tomitribe Participation • + 80 active contributors • + 200 designated committers • +1000 commits • + 900 PRs https://jakarta.ee
- 11. @CesarHgt @tomitribe What has NOT been donated? • Java EE Brand name • The javax.* namespace egrep -lRZ 'javax' . | xargs -0 -l sed -i -e 's/javax/jakarta/g' https://simpsons.fandom.com/wiki/Benjamin_(nerd)?file=Benjamin,_Doug,_and_Gary.gif
- 12. @CesarHgt @tomitribe The javax.* namespace • Oracle decides to restrict javax.* namespace • Unchanged APIs can still use javax.* namespace • Any other changes not allowed • Adding a value to an enum • Overriding/adding a method signature • Adding default methods in interfaces • Compensating for Java language changes
- 13. @CesarHgt @tomitribe javax.* to jakarta.* namespace • Remember the stats slide • How to maintain binary compatible for existing applications • Community discussion lead to a Big Band approach https://jakarta.ee/resources/JakartaEE-Datasheet-July172020_final.pdf
- 14. @CesarHgt @tomitribe Jakarta EE milestone release ● javax.* namespace no longer valid; need to use jakarta.* ● Implementations are available ○ API jars are available for all components ○ Initial component implementations for all APIs ○ Initial TCKs for all APIs ○ Draft Full Platform and Web Profile specifications ● Available on JDK 8; JDK 11 support planned post GA
- 16. @CesarHgt @tomitribe Apache TomEE ● Apache Tomcat + Java EE = Apache TomEE ● Built from Apache components ● MicroProfile compliant ● Footprint: 30MB zip, 100~MB memory ● TomEE 9.0.0-M1 (javax -> jakarta)
- 18. @CesarHgt @tomitribe Apache TomEE TomEE JAX-RS Microprofile Java Server Pages (JSP) Java Server Faces (JSF) Java Transaction API (JTA) Bean Validation Enterprise JavaBeansJavaMail API Java API for RESTful Web Services (JAX-RS) Java Persistence API (JPA) Contexts and Dependency Injection (CDI) Java Servlets Java Authentication and Authorization Service (JAAS) Java Authorization Contract for Containers (JACC) http://tomee.apache.org/comparison.html
- 19. @CesarHgt @tomitribe TomEE 9 M1 ● Bytecode level ○ Eclipse Transformer ○ TomEE Patch Plugin. ● No branches. No forks. No merge-conflict hell. Just two separate binaries from the same source; TomEE 8x for javax users: TomEE 9x for jakarta users. ● 90% pass rate on the Jakarta EE 9 Milestone 1 Web Profile TCK.
- 21. @CesarHgt @tomitribe Jakarta EE 9 Up and Running Get the Binary :) 1. Donwload apache-tomee-9.0.0-M1-plus.zip from https://tomee.apache.org 2. unzip apache-tomee-9.0.0-M1-plus.zip 3. chmod +x apache-tomee-plus-9.0.0-M1/bin/catalina.sh 4. ./apache-tomee-plus-9.0.0-M1/bin/catalina.sh run
- 22. @CesarHgt @tomitribe Build and run 1. wget https://github.com/apache/tomee/archive/tomee-project-8.0.4.zip 2. unzip tomee-project-8.0.4.zip 3. cd tomee-tomee-project-8.0.4/examples/moviefun-rest 4. idea . #Or your favorite IDE 5. mvn verify 6. Inspec moviefun-rest-jakartaee9-8.0.4.war 7. cp target/moviefun-rest-jakartaee9-8.0.4.war <TomEE9M1_HOME>/webapps Jakarta EE 9 Up and Running
- 23. @CesarHgt @tomitribe Jakarta EE 9 Up and Running Test the application curl -X POST http://localhost:8080/moviefun-rest-jakartaee9-8.0.4/rest/load curl -s http://localhost:8080/moviefun-rest-jakartaee9-8.0.4/rest/movies/ | jq open https://tomee.apache.org/tomee-9.0/examples/moviefun-rest.html
- 24. @CesarHgt @tomitribe ● https://www.tomitribe.com/blog/jakarta-ee-9-milestone-and-apache-t omee-9-0-0-m1/ ● https://tomee.apache.org/tomee-9.0/docs/ Resources
- 25. @CesarHgt @tomitribe How to contribute in TomEE? • tomee.apache.org/community • Share your migration takeaways • Documentation • Website fixes • Code tests • Code examples • Coverage increase for unit, integration, performance and static tests • Workshops
- 26. @CesarHgt @tomitribe Jakarta EE 10 and beyond The future of cloud-native Java
- 27. @CesarHgt @tomitribe Shifting to Cloud native applications • Meanwhile cloud became a reality
- 28. @CesarHgt @tomitribe Shifting to Cloud native applications
- 29. @CesarHgt @tomitribe How to contribute in Jakarta EE? • jakarta.ee/connect ○ Community, Working Group and Projects Mailing List ○ Slack, Newsletter, Blogs, Social Media • Join Jakarta EE community meetings • Join EE4J top project and Jakarta EE working group • Spread the word by speaking at conferences or blogging
- 30. @CesarHgt @tomitribe Thank you César Hernández Paving the way with Jakarta EE and Apache TomEE