Many years ago, Kragen complained about the implementation and performance of Java regexes, and suggested that an implementation that emitted JVM bytecode could perform better. It's been a minute, but I'm happy to report that complaining on the Internet has served its purpose. Today, I'm releasing the 0.0.1 version of needle, a library that compiles regular expressions to JVM bytecode. It compiles each regular expression to a Deterministic Finite Automaton (DFA), which is then compiled to a Java...