[jdk17u-dev] RFR: 8278116: runtime/modules/LoadUnloadModuleStress.java has duplicate -Xmx

[Aleksey Shipilev]

Clean backport to improve testing.

Additional testing:
 - [x] Linux x86_64 fastdebug, affected test still passes

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

Commit messages:
 - Backport bef5c7a2865e53778e9e476e57c31c0b0f98bcb1

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/21/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=21&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278116
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/21.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/21/head:pull/21

PR: https://git.openjdk.java.net/jdk17u-dev/pull/21