On 14/12/2012 01:24, Akhil Arora wrote:
As part of the library lambdafication, this patch adds a forEach default
method to Iterator, and converts remove() into a default method so that
implementations of Iterator no longer have to override remove if they
desire the default behavior, which is to throw an
UnsupportedOperationException.

This is not specified. Different Java SE implementations can have different default implementations of remove(). Your statement is either mistaken, or the changes will not meet their original intent.

forEach, it is not clear to me if the method description is specifying what the default implementation is supposed to do, or if it is specifying the contract for the method.

This, of course, has the same underlying cause as what is being discussed in other mail threads. I would like to see a clear decision being made around how default methods are to be specified before we start moving them into jdk8.

-Chris.


http://cr.openjdk.java.net/~akhil/8005051.0/webrev/

The above patch requires a small patch to an internal class which
happens to implement both Iterable and Iterator. Now both Iterable and
Iterator supply a default forEach method, so the compiler balks. One
minimally intrusive solution is for this class to override both defaults
and provide its own version of forEach.

http://cr.openjdk.java.net/~akhil/8005053.0/webrev/

Please review
Thanks

Reply via email to