Upgrading to JDK 17

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Mark Paluch edited this page Sep 29, 2021 · 7 revisions

This page describes the experience of the Spring Data team while upgrading the project build from a JDK 8 to JDK 17 baseline.

Related issues

Easy to miss

Jakarta EE 9 Migration: javax.enterprise.inject.spi.Extension service loader metadata must be renamed to jakarta.enterprise.inject.spi.Extension.

Learnings

Several dependencies (EJB API, Transaction API, Interceptor API) could be safely removed without breaking anything.
Newer javadoc requires presence of compiled code (https://github.com/spring-projects/spring-data-build/issues/1546) otherwise it fails with not found errors.
Javadoc in modulepath breaks when dependencies ship split packages (https://github.com/spring-projects/spring-data-build/commit/4c30d24a446930e44d67cff6aa4304672f92db7e)