[jdk13u-dev] RFR: 8268635: Corrupt oop in ClassLoaderData

[Anton Kozlov]

A clean backport of JDK-8268635: Corrupt oop in ClassLoaderData

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Commit messages:
 - Backport 3586a233a49c979e87fed9df148d0bf3df2df38b

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/234/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=234&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268635
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/234.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/234/head:pull/234

PR: https://git.openjdk.java.net/jdk13u-dev/pull/234