I've actually seen this particular library used (and misused and abused). People tried to offload I/O and data heavy tasks on it and was a spectacular fail, wit

I've actually seen this particular library used (and misused and abused). People tried to offload I/O and data heavy tasks on it and was a spectacular fail, with multiple threads getting blocked and people having to frequently adjust it's buffer size and batch size. One of those things to remember is that Java I/O layering (stuff like JPA) is really terrible. And people in my known Java world tend to prefer the abstractions while the people in the trading world try to use GC-less code (unboxed primitives and byte arrays). Unless you have verified your E2E I/O to be really fast (possible off heap), you're just pushing a few bytes here and there, your latencies are all in check - this library is not for you. Do all that work first, then use this library.