hg: code-tools/jmh: profilers: gracefully handle the absence of "perf" for LinuxPerf* profilers.

[aleksey.shipilev at oracle.com]

Changeset: 260c1492ba67
Author:    shade
Date:      2014-05-30 14:41 +0400
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/260c1492ba67

profilers: gracefully handle the absence of "perf" for LinuxPerf* profilers.

! jmh-core/src/main/java/org/openjdk/jmh/profile/LinuxPerfAsmProfiler.java
! jmh-core/src/main/java/org/openjdk/jmh/profile/LinuxPerfProfiler.java