[jdk11u-dev] RFR: 8242311: use reproducible random in hotspot runtime tests

[Goetz Lindenmaier]

I backport this for parity with 11.0.16-oracle.

SharedArchiveConsistency.java
GCStressApp.java
GCStressTest.java
Test were moved, patch applies with the following edits if the paths are adapted:
Copyright in GCStressApp.java
Copyright, test description in GCStressTest.java

This test is not in 11: NullPointerExceptionTest.java

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

Commit messages:
 - Backport c73934d8c8dcc81c85f770ce303f2cb47823785f

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/932/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=932&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8242311
  Stats: 21 lines in 6 files changed: 7 ins; 1 del; 13 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/932.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/932/head:pull/932

PR: https://git.openjdk.java.net/jdk11u-dev/pull/932