On 04/22/2015 08:24 PM, Vladimir Sitnikov wrote: > I think it makes sense to add common superclass for Multisets and > another one for Multimaps. > This removes code duplication between HashMutiset and TreeMultimap for instance. Pushed, thanks: http://hg.openjdk.java.net/code-tools/jmh/rev/549a04ac4526 -Aleksey.