On Wed, Feb 21, 2018 at 7:48 AM, Roger Riggs <roger.ri...@oracle.com> wrote:
> > On the style changes in URLClassPath-ArrayDeque, about declarations like: > > ArrayList<URL> path = new ArrayList<>(); > > It had been a recommended style to use the abstract type (List) on the > left hand side > and only use the concrete type where necessary. > There's a debate about whether using concrete types in the implementation is clearer. I happen to think so. But in performance critical classes the concrete class is more important to the maintainer (I'm thinking "ArrayDeque" not "Deque" when I maintain this code), and is also likely to help the JVM.
