https://docs.spring.io/spring-framework/docs/4.3.3.RELEASE/javadoc-api/org/springframework/core/convert/ConversionService.html?is-external=true
ConversionService (Spring Framework 4.3.3.RELEASE API)
spring frameworkreleaseapi
https://micronaut-projects.github.io/micronaut-core/latest/api/io/micronaut/core/convert/ConversionService.html
ConversionService (micronaut 3.4.0 API)
micronautapi