RFR: 8332631: Update nsk.share.jpda.BindServer to don't use finalization [v2]

[Leonid Mesnik]

> The BindServer starts several threads and opens streams.
> 
> It registered them for cleanup using "Finalizer" from nsk.share.framework. Currently, it cleanup resources during shutdown hook.
> 
> This fix changes BindServer to explicitly close streams and finish threads after test is completed. The exceptions are just printed like it was done previously. I haven't caught any exception during in close method during testing.

Leonid Mesnik has updated the pull request incrementally with three additional commits since the last revision:

 - Merge branch '8332631' of https://github.com/lmesnik/jdk into 8332631
 - Update test/hotspot/jtreg/vmTestbase/nsk/share/jpda/BindServer.java
   
   Co-authored-by: Chris Plummer <chris.plummer at oracle.com>
 - added space

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/19335/files
  - new: https://git.openjdk.org/jdk/pull/19335/files/eeeb59ff..c18445aa

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19335&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19335&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19335.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19335/head:pull/19335

PR: https://git.openjdk.org/jdk/pull/19335