[jdk11u-dev] RFR: 8274714: Incorrect verifier protected access error message

[Goetz Lindenmaier]

I backport this for parity with 11.0.15-oracle.

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Commit messages:
 - Backport e39bdc9ddb7ba50160d07a27e6038cdea6a594a8

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/691/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=691&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274714
  Stats: 104 lines in 3 files changed: 102 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/691.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/691/head:pull/691

PR: https://git.openjdk.java.net/jdk11u-dev/pull/691