Actuator endpoints with no operations that use selectors are not accessible when mapped to / #35426
Description
Below worked fine with Spring Boot 2.7.11 and earlier, stopped working with Spring Boot 3.
{"timestamp":"2023-05-15T08:17:22.903+00:00","status":404,"error":"Not Found","path":"/metrics/"}Tested other health endpoint with root - works as expected.
management.server.port=8989 management.server.base-path=/metrics management.endpoints.web.base-path=/ management.endpoints.web.path-mapping.prometheus=/Works for health:
management.server.port=8989 management.server.base-path=/metrics management.endpoints.web.base-path=/ management.endpoints.web.path-mapping.health=/Was asked to open in spring boot by micrometer owners:
micrometer-metrics/micrometer#3839