RFR: 8217385: JTREG: Clean up, make sure to close resources

[Thomas Schatzl]

Hi,

On Fri, 2019-01-18 at 17:00 +0100, Leo Korinth wrote:
> Hi,
> 
> This clean up closes resources in some test cases in the jtreg/gc
> folder.
> 
> This fix is somewhat based/dependent on the rest of my "JTREG:"
> webrevs.
> 
> Enhancement:
> https://bugs.openjdk.java.net/browse/JDK-8217385
> 
> Webrev:
> http://cr.openjdk.java.net/~lkorinth/8217385/00
> 
> Testing:
> passed locally: open/test/hotspot/jtreg/:hotspot_gc

Seems good to me.

Thanks,
  Thomas