While the collections library may be better than others, it has a great many warts, many of which aren't discoverable until you've used it a long time. Some of

While the collections library may be better than others, it has a great many warts, many of which aren't discoverable until you've used it a long time. Some of these warts are a result of JVM interop requirements. It's not just the collections library, while the language is great and better than others, there are mounds of bugs and poor design decisions.