hg: code-tools/jmh: link: synchronize accesses to binary link clients.

[aleksey.shipilev at oracle.com]

Changeset: 5070b7fd46e7
Author:    shade
Date:      2014-07-17 16:10 +0400
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/5070b7fd46e7

link: synchronize accesses to binary link clients.
Helps to maintain correctness when several threads are writing to stdout/stderr.

! jmh-core/src/main/java/org/openjdk/jmh/runner/link/BinaryLinkClient.java