RFR: JDK-8305962: update jcstress to 0.16 [v2]

[Leonid Mesnik]

> The fix changes jcstress version and update some parameters used by the jtreg wrapper.

Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:

  fixes

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/14742/files
  - new: https://git.openjdk.org/jdk/pull/14742/files/d7ef2058..c21f4e65

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14742&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14742&range=00-01

  Stats: 5 lines in 1 file changed: 3 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/14742.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14742/head:pull/14742

PR: https://git.openjdk.org/jdk/pull/14742