Do you want to make your Java app extensible and easy for others to add functionality?

https://medium.com/geekculture/designing-a-lightweight-plugin-architecture-in-java-5eedfeaa92a9

https://www.morling.dev/blog/plugin-architectures-with-layrry-and-the-java-module-system/

pf4j

pf4j-spring-tutorial

creating module applications with springboot's pluin system

spring-plugin

WizzDi and FlexiCore

https://techdozo.dev/distributed-transactions-in-microservices-implementing-saga-with-temporal/