Apache Geode 1.14.x is based on Micrometer 1.6.3 while Spring Boot 3.0 (Spring Session 3.0) is based on Micrometer 2.0. Micrometer 1.9 is the bridge between framework, libraries and product still based on Micrometer 1.x while application frameworks like Spring Boot use Micrometer 2.0. Upgrade to Micrometer 1.9.0-M4.