RFR: 8303229: JFR: Preserve disk repository after exit [v4]

[Erik Gahlin]

> Hi,
> 
> Could I have a review of an enhancement that adds the option preserve-repository=true/false to -XX:FlightRecorderOptions and jcmd JFR.configure. When set to true, chunk files in the repository will not be removed by the JVM at exit.
> 
> Testing: jdk/jdk/jfr
> 
> Thanks
> Erik

Erik Gahlin has updated the pull request incrementally with one additional commit since the last revision:

  Fix copyright

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13111/files
  - new: https://git.openjdk.org/jdk/pull/13111/files/0b500c8e..6c860c1e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13111&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13111&range=02-03

  Stats: 23 lines in 2 files changed: 22 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/13111.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13111/head:pull/13111

PR: https://git.openjdk.org/jdk/pull/13111