https://docs.spring.io/spring-framework/docs/4.3.24.RELEASE/javadoc-api/org/springframework/web/socket/sockjs/transport/handler/AbstractTransportHandler.html
AbstractTransportHandler (Spring Framework 4.3.24.RELEASE API)
spring frameworkreleaseapi
https://docs.spring.io/spring-framework/docs/5.1.7.RELEASE/javadoc-api/org/springframework/web/socket/sockjs/transport/handler/AbstractTransportHandler.html
AbstractTransportHandler (Spring Framework 5.1.7.RELEASE API)
spring frameworkreleaseapi