Why isEmpty(), retainAll() and containsAll() not supported with default implementations in JDK8?

[Rob McKenna]

Hi Roman,

I think the core-libs-dev at openjdk.java.net list would make more sense 
for this question.

Also, you could try a google search of 
mail.openjdk.java.net/pipermail/core-libs-dev/

     -Rob

On 14/02/14 09:20, Roman Leventov wrote:
> I'm sure there was a discussion somewhere in JDK mailing lists, but I couldn't find. Please, give me a link.
>
> I've tried to ask on SO: http://stackoverflow.com/questions/21758081/why-many-methods-in-jcf-interfaces-not-made-default-in-java-8, proved that JDK developers doesn't read SO :)