RFR(s): 8072726: add adapter to convert Enumeration to Iterator

Paul Sandoz paul.sandoz at oracle.com
Tue May 19 12:26:03 UTC 2015

On May 19, 2015, at 12:41 PM, Tomasz Kowalczewski <tomasz.kowalczewski at gmail.com> wrote:
> Is there a plan to override the default method asIterator() in specific implementations of Enumeration to avoid creating new object? JarFile::entries already returns JarEntryIterator which is both.

I suppose one could, it's easy to do in some cases like in JarFile.

Given that Enumeration is a legacy thing time could be better spent on adding Stream returning methods, which already exist on JarFile/ZipFile. 

Contributions will be warmly received for Stream returning methods on ClassLoader, NetworkInterface etc.! 

> To be fair I did some tests and when I wrap Enumerable into simple Iterator adapter it will almost always get scalar replaced by escape analysis (unless, of course, it actually escapes :)).

Right :-) works until it doesn't.


More information about the core-libs-dev mailing list