for websocket on-message's client request from the text file new line (Enter) not accepted by using of stubby4j any solution or guideline to use new line in requested file, my requirement is, in requested text file must use multiline value

for websocket on-message's client request from the text file new line (Enter) not accepted by using of stubby4j any solution or guideline to use new line in requested file, my requirement is, in requested text file must use multiline value #481