hg: code-tools/jmh: Fix the test failure on JDK 6 due to Javac Filer's inability to read the resource back.

[aleksey.shipilev at oracle.com]

Changeset: 723dc85eb157
Author:    shade
Date:      2015-01-12 23:41 +0300
URL:       http://hg.openjdk.java.net/code-tools/jmh/rev/723dc85eb157

Fix the test failure on JDK 6 due to Javac Filer's inability to read the resource back.

! jmh-core/src/main/java/org/openjdk/jmh/generators/core/BenchmarkGenerator.java