关于泛化泛型的讨论有一篇很好的文章， here ，你应该阅读Java。基本上它概述了引入这种变化可能发生的一些陷阱。当你考虑它时，向后兼容是相当残酷的。如果您想知道它来自哪里，请在 Hacker新闻中选择它。

There's a good article on the discussion of reified generics, here, that you should read in regards to Java. Basically it outlines some of the pitfalls that might happen with the introduction of such a change. It's fairly brutal for backwards compatibility when you think about it. Picked it up on Hacker News if you're wondering where it came from.

请多关注为Java添加闭包。不再需要像功能性Java 等之类的东西一样的东西（相反，它们不好，相反。）

Be grateful that there's talk of adding closures to Java. No more having to slog through with only things like Functional Java and their ilk (not that these were bad, on the contrary.)