RFR: 8298526: Close the stopped jfr after JFR.dump [v2]

[xpbob]

> start jfr with duration
> 
> jcmd 31514 JFR.start duration=30s
> 31514:
> Started recording 1.
> 
> Use jcmd 31514 JFR.stop name=1 filename=FILEPATH to copy recording data to file.
> 
> 
> 
> use JFR.check after 30s
> 
> jcmd 31514 JFR.check
> 31514:
> Recording 1: name=1 duration=30s (stopped)
> 
> 
> Unable to close the stopped jfr
> 
> jcmd 31514 JFR.stop name=1 filename=/data/test.jfr
> 31514:
> Destination can't be set on a recording that has been stopped/closed
> ``` 
>  
> Add a check after using name dump,close the stopped jfr

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

  add recording check

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/11625/files
  - new: https://git.openjdk.org/jdk/pull/11625/files/4d778f38..da798e4a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11625&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11625&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11625.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11625/head:pull/11625

PR: https://git.openjdk.org/jdk/pull/11625