A while ago, I was studying the output of IntelliJ IDEA’s static analyzer for Java code and came across an interesting case. Since the code fragment was not open source, I’ve anonymized it and removed the external dependencies. Let's just say it looked something like this: private static List process(Map options, List inputs) { List res = new ArrayList(); int cur = -1; for (String str : inputs) { if (str.startsWith("-")) if (options.containsKey(str)) { if (cur == -1) cur = options.get(str); } else if (options.cont