tree 7a07774ef6878094e1781d0e9e897cc7f783b3e9
parent 03c3206f3b7ab24c68673bede3fb4e941c38106f
author HIGUCHI Yuta <y-higuchi@ak.jp.nec.com> 1443570861 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1443646751 +0000

Fix synchronization issue

- synchronizedMultiMaps needs to be synchronized,
  when iterating over it's contents.
  See:
   http://static.javadoc.io/com.google.guava/guava/18.0/com/google/common/collect/Multimaps.html#synchronizedMultimap(com.google.common.collect.Multimap)

Change-Id: I398079a67e9fab58edc9d6f0295169939e640ba2