Journey to Modern Spring

Over the past decade, Spring has made tremendous advancements and improvements in a variety of areas that allow us to create applications in many different forms, such as Microservices, Event Driven, Reactive, Cloud, and Serverless.
And if you look at the major changes in Spring 6 and Spring Boot 3, which were recently released, you'll see that they're making a big push towards cloud native.
Today, we're going to take a look at what cloud native is and take a light-hearted look back at what Spring has in store for cloud native and the journey we've taken to get to where we are today.

Transcript

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    Java 17 and Jakarta EE 9 / 10 Native Executables Observability Smaller Changes in Core and Web Testing Language: text blocks, switch expressions Core libraries: collection factory methods, etc Type system: records, sealed classes Module system: module introspection, module path scanning Enterprise: Servlet 5.0, JPA 3.0, etc Ahead Of Time AOT GraalVM Native Image Ahead Of Time AOT for TestContext Micrometer Observation
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    Project Galahad GraalVM technology merging into OpenJDK Project CRaC Bootstrapping from a warmed up HotSpot JVM snapshot Project Loom lightweight threading model within the JVM Project Leyden OpenJDK aims to introduce well defined static images
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    Scalability Dynamically support increasing or decreasing workloads Loose coupling Components have minimal knowledge of each other Resilience Maintain level of service in face of adversity Observability Knowledge about the internal state inferred from the outside Manageability Level of control from the outside: update, configure, deploy
12. https://www.fool.com.au/2020/02/22/4-top-asx-shares-to-help-you-start-a-share-portfolio/
13. https://www.hpcwire.com/2012/03/19/cloud_moving_from_hype_to_reality/ Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010
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    1PSUBCJMJUZ 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2012 2011 2010 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4
16. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2012 2011 2010 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 https://aionys.com/how-to-benefit-from-microservices-architecture-implementation/
17. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2012 2011 2010 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 https://www.pngkey.com/detail/u2e6q8i1e6i1i1w7_netflix-oss-spring-cloud-netflix/
18. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2012 2011 2010 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 https://architecturenotes.co/12-factor-app-revisited/
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    &BTJMZ Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4
20. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4
21. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4 https://thenewstack.io/solomon-hykes-leader-open-source-world-needs/
22. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4 https://techcrunch.com/2014/11/13/amazon-launches-lambda-an-event-driven-compute-service/
23. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4 https://openjdk.org/projects/valhalla/design-notes/state-of-valhalla/02-object-model Value Object (marker) Identity Object (marker) Cursor Point its box List Cursor its box List Object Iterator Abstract List (partially concrete) String (identity significant) int[] (mutable array) HashMap (mutable object) LocalDate (VBC = value based class, just before migration) Memory Segment (value object: secure, no box, better VBC) Optional (VBC migrated to value object, a NOID) int long float double boolean char byte short Island of Classless Scalar Primitives their boxes IDENTITY OBJECT REF (ID-O-SAURs) object identity construction safety fields stay together fast pointer compare VALUE OBJECT REF (NOIDs) (includes PRIM boxes) freely copyable field-wise flattenable construction safety atomicity, no identity THIS MIDDLE SWATH IS WHAT’S NEW IN VALHALLA NON-CONCRETE REF polymorphic abstract class or interface field-wise flattenable (like NOID) freely copyable (like NOID) no identity (like NOID) defaults to all-zero bits no nulls, no direct recursion no construction safety no atomicity (tearing) no polymorphism extended primitives, with class-like declaration POSSIBLE IN VALHALLA PRIMITIVES (one quadrant) REFERENCES (three quadrants) PRIM = ¬ REF, scalar/extended primitive REF = ¬ PRIM, all are nullable, recursive The Zoo of Java Field Types (Valhalla draft design, adding Extended Primitives)
24. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2012 2011 2010 2013 Spring 4
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27. https://twitter.com/cloudnativejava 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010
28. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010
29. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010
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    Containers Lightweight and isolated computing contexts Orchestration Container scheduling, cluster management Serverless Servers and backing services managed by cloud providers
31. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010 https://thecamels.org/en/what-is-the-lift-and-shift-approach-when-migrating-to-the-cloud/
32. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010 DIBMMFOHFT
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33. 2015 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010 https://www.womansworld.com/posts/animals/cats-in-small-spaces-169156
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36. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://github.com/topics/event-driven-architecture
37. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010
38. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://docs.spring.io/spring-framework/docs/current/reference/html/core.html#beans-scanning-index *OEFY
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39. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://www.infoq.com/presentations/present-future-reactive-systems/
40. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://docs.spring.io/spring-framework/docs/current/reference/html/web-reactive.html#spring-webflux 8FC
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    3FBDUJWFTUBDL Designed to high concurrency, scalability and low latency with non blocking I/O Asynchronous and event driven programming models Support for Spring projects, including data and security Ideal for building microservices and event driven architectures It s not ideal for all cases Consider specific requirements and trade offs to decide wisely
41. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://developers.redhat.com/blog/2019/06/19/project-loom-lightweight-java-threads
42. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://developers.redhat.com/blog/2019/06/19/project-loom-lightweight-java-threads 1SPKFDU
    -PPN JDK 19 finally includes Project Loom as regular preview Virtual threads as lightweight threading model within JVM A different magnitude of scalability for imperative programming Implemented as virtual variants of java.lang.Thread Not blocking an operating system thread on I/O operations
43. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://www.javacodegeeks.com/2017/09/java-9-jigsaw-jpms-modules-personal-exploration.html
44. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 https://www.baeldung.com/project-jigsaw-java-modularity 1SPKFDU
    +JHTBX Better organization and structure for large applications Efficiently manage complex dependencies, reduce footprint Strengthen security, maintainability with restricted access Boost Java runtime optimizations, reduce startup time
45. Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010
46. https://www.oreilly.com/library/view/beyond-the-twelve-factor/9781492042631/ Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2016 2017 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010
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48. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://developers.redhat.com/articles/2022/04/19/java-17-whats-new-openjdks-container-awareness $POUBJOFS
    "XBSFOFTT Kubernetes and orchestrations limit container with CPU, memory quotas JVM detects container environment for awareness Impact garbage collection, size of heap or thread pools, parallelism and etc Supported in Java 8u192 and later recommend 17 and 11.0.16 ❯ java -XX:+UseContainerSupport app.jar Console 2010
49. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://developers.redhat.com/articles/2022/04/19/java-17-whats-new-openjdks-container-awareness $16
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 -XX:ActiveProcessorCount=<2x yourCpuLimit> 
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50. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://learn.microsoft.com/en-us/azure/developer/java/containers/overview (BSCBHF
    DPMMFDUJPO JVM defaults use available processors and memory for ergonomics Select SerialGC or G1GC, depending on the resources available Always set GC based on heap size and available processes Resources available Default GC Any number of processors Up to 1791 MB of memory SerialGC 2 processors 1792 MB or more of memory G1GC 2010
51. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://www.happycoders.eu/java/java-10-features/#Application_Class-Data_Sharing "QQMJDBUJPO
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52. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://www.reddit.com/user/EFdnV/comments/11t0i7e/how_can_cloud_native_java_evolve_to_help_achieve/ 2010
53. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010 2015 https://docs.oracle.com/en/graalvm/index.html
54. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 &GGJDJFOU
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55. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2015 https://docs.spring.io/spring-boot/docs/current/reference/html/container-images.html#container-images.docker %PDLFSGJMFT
    
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56. 2016 2017 2018 2019 2020 2021 2022 2014 2013 2023 Spring 5 Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2012 2011 2010 2015 https://spring.io/blog/2021/03/11/announcing-spring-native-beta
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59. Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 2016 2017 Spring 5 Java 21 Spring AOT Plugin Spring application sources javac Application bytecode AOT sources javac AOT bytecode Native configuration native image compiler Native Executable Substrate VM 
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61. plugins {
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62. Spring Boot 2 Java 11 Java 17 Spring 6 Spring Boot 3 Spring Boot 1 Java 8 Spring 4 2015 2018 2019 2020 2021 2022 2023 2014 2013 2012 2011 2010 2016 2017 Spring 5 Java 21 Ý Ý Metrics Tracing Logs distributed tracing https://spring.io/blog/2022/10/12/observability-with-spring-boot-3 0CTFSWBCJMJUZ
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68. 3FGFSFODF Spring Framework 6 Infrastructure Themes Cloud Native Spring in Action JVM Kubernetes: Optimizing Kubernetes for Java Developers Kubernetes Native Java with Quarkus