関連ワード:  spring boot 2.7 18 java version    spring boot 2.7 18 java version compatibility    spring boot 2.7.18 jdk version    spring boot 2.7.18 supported java version    spring boot starter parent 2.7 18 java version    Spring Boot 2.7.18 java version    spring boot support which java version    is java 1.8 still supported    openjdk vs java version