https://docs.spring.io/spring-security/site/docs/current/api/org/springframework/security/core/SpringSecurityMessageSource.html
SpringSecurityMessageSource (spring-security-docs 7.0.0 API)
declaration: package: org.springframework.security.core, class: SpringSecurityMessageSource
spring securitydocsapi
https://docs.spring.io/spring-security/site/docs/4.2.12.RELEASE/apidocs/org/springframework/security/core/SpringSecurityMessageSource.html
SpringSecurityMessageSource (Spring Security 4.2.12.RELEASE API)
spring securityreleaseapi