XChange-stream is a Java library providing a simple and consistent streaming API for interacting with Bitcoin and other crypto currency exchanges via WebSocket protocol. It is build on top of of XChange library providing new interfaces for streaming API. User can subscribe for live updates via reactive streams of RxJava library.
BTW: This warning could applies to a lot of exchanges, getting a good snapshot then updates is not always possible on all exchanges (binance at least has a working solution)
I subscribe to a lot of tickers