This was seen in a monasca-api.log:
ERROR [2016-02-13 17:18:41,546] monasca.common.middleware.TokenExceptionHandler:
Http Client Exception java.lang.NumberFormatException:
multiple points com.google.common.util.concurrent.UncheckedExecutionException:
java.lang.NumberFormatException: multiple points
Search shows that this can be caused by using a SimpleDateFormat concurrently
in two or more threads. SimpleDataFormat is not Thread Safe.
Use ThreadLocal to access SimpleDateFormant safely
Change-Id: Id12e8da8acc8b8a36be2504b55a219eef7293d44
0ea1032d90