Obviously the well known habit of JVM applications to leak memory. /s (Although being fair, I've met some Java libs that leak memory (looking at you, Couchbase

Obviously the well known habit of JVM applications to leak memory. /s (Although being fair, I've met some Java libs that leak memory (looking at you, Couchbase), usually via poor usage of byte buffers. But Rust doesn't let you use unsafe code constructs, so it'll be fine. I guess I need another /s now.)