[jdk11u-dev] RFR: 8216532: tools/launcher/Test7029048.java fails (Solaris)

[Aleksey Shipilev]

Backporting this for `11.0.13-oracle` parity.

Additional testing:
 - [x] `tools/launcher` tests pass

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

Commit messages:
 - Backport be44ced10aa299f60e9227cc25a7541fd4203271

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/212/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=212&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8216532
  Stats: 44 lines in 1 file changed: 10 ins; 10 del; 24 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/212.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/212/head:pull/212

PR: https://git.openjdk.java.net/jdk11u-dev/pull/212