RFR: 8278492: Parameter -XX:MinRAMPercentage has no effect

[Thomas Schatzl]

Hi all,

  can I have reviews for this change that makes the `MinRAMPercentage` flag actually affect minimum heap size?

Testing: gha, test case

Thanks,
  Thomas

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

Commit messages:
 - Initial version

Changes: https://git.openjdk.java.net/jdk/pull/7755/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7755&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278492
  Stats: 97 lines in 2 files changed: 96 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7755.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7755/head:pull/7755

PR: https://git.openjdk.java.net/jdk/pull/7755