RFR: 8319678: Several tests from corelibs areas ignore VM flags [v4]

[Mahendra Chhipa]

> Updated following tests to use ProcessTools methods:
>  test/jdk/java/lang/Thread/UncaughtExceptionsTest.java
>  test/jdk/java/lang/annotation/LoaderLeakTest.java
>  test/jdk/java/rmi/reliability/benchmark/bench/rmi/Main.java
>  test/jdk/java/time/nontestng/java/time/chrono/HijrahConfigTest.java
>  test/jdk/javax/naming/spi/providers/InitialContextTest.java

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

  Removed commented code.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18602/files
  - new: https://git.openjdk.org/jdk/pull/18602/files/4d258b00..8aba98ce

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18602&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18602&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18602.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18602/head:pull/18602

PR: https://git.openjdk.org/jdk/pull/18602