**Jakarta EE 9** changed its package namespace from `javax.*` to `jakarta.*`. This may sound like a trivial change that mostly affects Jakarta EE. So, why should Spring developers care? As it turns out, the namespace changes ripple throughout the entire Java ecosystem. And Spring is no exception. Spring Framework 6 and Spring Boot 3 raise their baseline to Jakarta EE 9 API level which is supported by Tomcat 10 and Jetty 11 for example. Attending this session will teach you how to make this migration as smoothly as possible. A live coding demo will take you through the steps involved, and point out where to pay special attention. We will also briefly examine some of the changes introduced in **Jakarta EE 10** that will prepare you for what to expect from Spring 6.x. Some pointers to what we can expect from **Jakarta EE 11** will also be given.

1. COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta EE for Spring Developers
Ivar Grimstad
Jakarta EE Developer Advocate
Eclipse Foundation

2. @ivar_grimstad
https://github.com/ivargrimstad
https://www.linkedin.com/in/ivargrimstad
@ivar_grimstad@mastadon.social

4. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)

8. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Speci
fi
cation
Document
API
TCK
Final Speci
fi
cation
Compatible
Implementation(s)
Speci
fi

9. Jakarta EE 10 Web Pro
fi
Jakarta EE 10 Platform
Updated
Not Updated
New
Authorization 2.1
Activation 2.1
Batch 2.1
Connectors 2.1
Mail 2.1
Messaging 3.1
Enterprise Beans 4.0
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0

10. Jakarta EE 10 Core Pro
fi
Jakarta EE 10 Web Pro
fi
le
Updated
Not Updated
New
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0

11. Jakarta EE 10 Core Pro
fi
le
Updated
Not Updated
New
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0

12. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta EE 10
API source level: Java SE 11
API binary level: Java SE 11
TCK run with: Java SE 11+
App Developers (YOU) can use Java SE 17 features if you like!!

13. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
How is this Relevant
to
?

14. javax.* -> jakarta.*

15. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
builds on

16. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
javax.* -> jakarta.*

17. Authorization 2.1
Activation 2.1
Batch 2.1
Connectors 2.1
Mail 2.1
Messaging 3.1
Enterprise Beans 4.0
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0
Jakarta EE 10 Web Pro
fi
le
Updated
Not Updated
New

18. Hibernate ORM

19. UUID as Basic Java Type
@Entity
public class Item {
@Id
@GeneratedValue(strategy=GenerationType.UUID)
private java.util.UUID id;
private String description;
…
}

20. Authorization 2.1
Activation 2.1
Batch 2.1
Connectors 2.1
Mail 2.1
Messaging 3.1
Enterprise Beans 4.0
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0
Jakarta EE 10 Platform
Updated
Not Updated
New

21. Hibernate Validator

22. Authorization 2.1
Activation 2.1
Batch 2.1
Connectors 2.1
Mail 2.1
Messaging 3.1
Enterprise Beans 4.0
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0
Jakarta EE 10 Platform
Updated
Not Updated
New

23. Eclipse Jetty Apache Tomcat

24. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Demo

25. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
New Spring App
Scenario 1

26. Spring Boot 3
+
Tomcat 9
duke-spring
Spring Boot 3
+
Tomcat 10
duke-spring

27. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Upgrade Spring App
Scenario 2

28. Spring Boot 2 Spring Boot 3
duke-boot
duke-boot

29. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
javax.* -> jakarta.*

30. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
IDE

32. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
1. Update Spring version in pom.xml
2. Update Jakarta EE version in pom.xml
3. Fix the imports
https://github.com/ivargrimstad/jakartaee-spring

33. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Upgrade Spring App
Scenario 3
with Dependencies

34. Spring Boot 2
duke-boot
duke-dep
Spring Boot 3
duke-boot
duke-dep

35. duke-dep
Source

36. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
1. Update Spring version in pom.xml
2. Update Jakarta EE version in pom.xml
3. Fix the imports
4. Repeat for Dependencies
https://github.com/ivargrimstad/jakartaee-spring

37. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Upgrade Spring App
Scenario 4
with External Dependencies

38. Spring Boot 2
duke-boot
duke-dep duke-lib
Spring Boot 3
duke-boot
duke-dep duke-lib

39. Source
duke-dep
Source
duke-lib

40. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Transformation

41. Eclipse Transformer Apache Tomcat Migration Tool
b.com/eclipse/transformerhttps://tomcat.apache.org/download-migration.cgi

42. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
1. Update Spring version in pom.xml
2. Update Jakarta EE version in pom.xml
3. Fix the imports
4. Repeat for Dependencies
5. Transform Libraries if necessary
https://github.com/ivargrimstad/jakartaee-spring

43. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Additional Migration
Steps

44. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
1. Update Spring version in pom.xml
2. Update Jakarta EE version in pom.xml
3. Fix the imports
4. Repeat for Dependencies
5. Transform Libraries if necessary
6. Rename properties pre
fi
xed with javax
7. Verify data and dynamic content
https://github.com/ivargrimstad/jakartaee-spring

45. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Beyond 10

46. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta EE 11
Starting NOW!

47. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Release Cadence

48. COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta NoSQL
Standardizes integration with NoSQL databases
https://jakarta.ee/speci
fi
cations/nosql/
NEW

49. COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta Data
Standardizes the repository pattern for data access
https://jakarta.ee/speci
fi
cations/
NEW

50. COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta RPC
Standardizes gRPC within Jakarta EE
https://jakarta.ee/speci
fi
cations/rpc/
NEW

51. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Jakarta EE 11
API source level: Java SE 17 or 21
API binary level: Java SE 17 or 21
TCK run with: Java SE 21
Work in
Progress

52. COPYRIGHT (C) 2022, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Summary

53. Jakarta EE 10 Platform
Updated
Not Updated
New
Authorization 2.1
Activation 2.1
Batch 2.1
Connectors 2.1
Mail 2.1
Messaging 3.1
Enterprise Beans 4.0
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0
Servlet 6.0
Server Pages 3.1
Expression Language 5.0
Debugging Support 2.0
Standard Tag Libraries 3.0
Faces 4.0
WebSocket 2.1
Enterprise Beans Lite 4.0
Persistence 3.1
Transactions 2.0
Managed Beans 2.0
CDI 4.0
Authentication 3.0
Concurrency 3.0
Security 3.0
Bean Validation 3.0

54. Jakarta EE 10 Core Pro
fi
le
Updated
Not Updated
New
RESTful Web Services 3.1
JSON Processing 2.1
JSON Binding 3.0
Annotations 2.1
CDI Lite 4.0
Interceptors 2.1
Dependency Injection 2.0

55. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
How is Relevant
to

56. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
relies on

57. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
builds on

58. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
depends on

59. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
javax.* -> jakarta.*

60. COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
1. Update Spring version in pom.xml
2. Update Jakarta EE version in pom.xml
3. Fix the imports
4. Repeat for Dependencies
5. Transform Libraries if necessary
6. Rename properties pre
fi
xed with javax
7. Verify data and dynamic content
https://github.com/ivargrimstad/jakartaee-spring

61. Jakarta EE
https://jakarta.ee
Jakartablogs
https://jakartablogs.ee/
Ivar’s Hashtag Jakarta EE
https://www.agilejava.eu/category/jakarta-ee/
Demo Code
https://github.com/ivargrimstad/jakartaee-spring