Stomp over socket using sockjs can't connect with Spring 4 WebSocket

Question

Trying to use Spring 4 WebSocket with STOMP over socket using sockjs. And i faced a problem.

My configuration:

websocket.xml - part of spring context

Answer 1

I arrived on this page and - thanks to Boris Accepted Answer was motivated to reconsider the java approach as opposed to the xml approach which was causing the - /info=34424 with 404 error...whoops lost connection - I have Spring 4.2 in my project and many SockJS Stomp implementations usually work well with Spring Boot implementations. This implementation from Baeldung worked(for me without changing from Spring 4.2 to 5 or Boot). After Using the dependencies mentioned in his blog, it still gave me ClassNotFoundError. I added the below dependency to fix it.

        org.springframework
        spring-core
        4.2.3.RELEASE
    

Baeldung's implementation curiously does not make any such calls

flow/websocket/add/info?t=1540813753999

What it does (on send and receive) is below. I am only pasting it in case people well-versed with these libraries can further add insights on this forum.

 >>> SEND
destination:/app/chat
content-length:38

{"from":"nicholas","text":"try again"}

<<< MESSAGE
destination:/topic/messages
content-type:application/json;charset=UTF-8
subscription:sub-0
message-id:m3p096zk-11
content-length:53

{"from":"nicholas","text":"try again","time":"13:46"}