Dear community,
I’ve been reading documentation from Vaadin, Spring, Howto’s etc and even threads in the forum in order to figure out how to accomplish this.
I have to develop 2 applications with Vaadin 24.8, SpringBoot that should have some shared code. So I planned to go with a multi module:
2 modules, 1 for each application
1 module with shared UI components, utility classes
1 module with entities
1 module with services
I’m using maven as build tool and Eclipse 2025.06 as IDE.
Setting up the multi module project is easy and the applications start with spring-boot:run just as you would expect. When I change code in the application module, the spring dev tools pick up the code changes, the server reloads and the code change is applied, again just as you expect.
BUT, when I change something in the shared components module, the server restarts but doesn’t take the code changes into account.
I’ve tried adding
spring.devtools.restart.additional-paths
to my application.properties. I tried relative and absolute paths. But without any success.
I need to run
mvn install
on the shared module and then restart the application in order to make it work but that’s really a pain.
So, I wonder how you guys handle such a setup? Are you facing the same issues? Are you using a different setup for that kind of a project with shared “libraries”?
Do you have a clue whether this is a spring dev tools limitation? Maven issue?
Many thanks in advance for your feedback.
Kind regards,
Alex
