   Metrics
   Copyright 2010-2013 Coda Hale and Yammer, Inc.

   This product includes software developed by Coda Hale and Yammer, Inc.

   This product includes code derived from the JSR-166 project (ThreadLocalRandom, Striped64,
   LongAdder), which was released with the following comments:

   Written by Doug Lea with assistance from members of JCP JSR-166
   Expert Group and released to the public domain, as explained at
   http://creativecommons.org/publicdomain/zero/1.0/
   
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.