git: openjdk/jcstress: CODETOOLS-7902911: jcstress: Fix new Sonar warnings

[duke]

Changeset: 20c6983d
Author:    Aleksey Shipilëv <shade at redhat.com>
Committer: GitHub <noreply at github.com>
Date:      2021-04-30 08:53:05 +0000
URL:       https://git.openjdk.java.net/jcstress/commit/20c6983dd481cad2348d22068e031e5bbc797cad

CODETOOLS-7902911: jcstress: Fix new Sonar warnings


! jcstress-core/src/main/java/org/openjdk/jcstress/TestExecutor.java