This is a review request for a small spec clarification to java.util.stream.Collectors, that appears to be a minor oversight in the original spec.
Many of the Collectors that accumulate, group, etc, elements into a Collection, and do not accept a Collection supplier, come with a caveat on the Collection they create, along the lines of, "There are no guarantees on the type, mutability, serializability, or thread-safety of the ... returned". This caveat should be applied to all Collectors that create such Collections. Specdiff: http://cr.openjdk.java.net/~chegar/8068599/specdiff/java/util/stream/Collectors.html webrev: http://cr.openjdk.java.net/~chegar/8068599/webrev/ Thanks, -Chris.
