hg: jep/jeps: 180: Handle Frequent HashMap Collisions with Balanced Trees

[mark.reinhold at oracle.com]

Changeset: 012f90ee4757
Author:    mr
Date:      2013-04-05 11:03 -0700
URL:       http://hg.openjdk.java.net/jep/jeps/rev/012f90ee4757

180: Handle Frequent HashMap Collisions with Balanced Trees

+ jep-180.md