In Configuration Guide > Advanced Configuration > Caching Configuration The dependencies should use the newer Jakarta namespace instead of javax I believe the Maven one should be ``` <dependency> <groupId>org.ehcache</groupId> <artifactId>ehcache</artifactId> <classifier>jakarta</classifier> </dependency> ``` No need to mention the cache-api dependency specifically. At first glance this starts up and works for me with ehcache logs showing in my initializr instance. Not sure what the equivalent gradle looks like.