hg: code-tools/jmh: runner: handle empty aggregated result.

[aleksey.shipilev at oracle.com]

Changeset: 82b88f09fc2b
Author:    shade
Date:      2014-07-03 15:34 +0400
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/82b88f09fc2b

runner: handle empty aggregated result.

! jmh-core/src/main/java/org/openjdk/jmh/results/RunResult.java