The part within brackets does not exist outside the Java compiler, i.e. at the bytecode level, it is really just a Collection, not a Collection<? extends E>.
If you're interested, you can google "java type erasure" to learn more about this. On Wednesday, 27 January 2016, Ritchie Cai <ritchie...@gmail.com> wrote: > Ahh, thanks. I was wondering how to specify Collection > <https://docs.oracle.com/javase/7/docs/api/java/util/Collection.html><? > extends E > <https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html>>, > but looks like just Collection will work. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.