RFR: 8328066: WhiteBoxResizeTest failure on linux-x86: Could not reserve enough space for 2097152KB object heap [v3]

[Jaikiran Pai]

> Can I please get a review of this test-only change which proposes to address https://bugs.openjdk.org/browse/JDK-8328066?
> 
> The test launches a JVM with 2G heap (`-Xmx2G`) and as noted in that issue, the failure was observed on linux-86 instance on a GitHub jobs run. 
> 
> The commit in this PR proposes to add relevant `@requires` so that the test is only run on 64 bit VM and expects the `os.maxMemory` to be > 2G.
> 
> The change has been tested on a linux-x86 run in GitHub actions job, plus even on local and CI 64 bit VM environments. No failures have been noticed.

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

  Mark's suggestion - no need for os.maxMemory

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18290/files
  - new: https://git.openjdk.org/jdk/pull/18290/files/e819081e..ff708ecf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18290&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18290&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18290.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18290/head:pull/18290

PR: https://git.openjdk.org/jdk/pull/18290