[jdk11u-dev] Integrated: 8247421: [TESTBUG] ReturnBlobToWrongHeapTest.java failed allocating blob

[Aleksey Shipilev]

This fixes the testbug and keeps codebases in sync (I see 11.0.13-oracle). Patch applies cleanly to 11u, passes tier1, passes affected test.

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Commit messages:
 - Backport bf300e8d8c9986aa436576b8ca1b5e4afea04b77

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/65/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=65&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247421
  Stats: 11 lines in 1 file changed: 9 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/65.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/65/head:pull/65

PR: https://git.openjdk.java.net/jdk11u-dev/pull/65