[jdk21u-dev] RFR: 8340480: Bad copyright notices in changes from JDK-8339902

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle

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Commit messages:
 - Backport fdc16a373459cb2311316448c765b1bee5c73694

Changes: https://git.openjdk.org/jdk21u-dev/pull/1302/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1302&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340480
  Stats: 5 lines in 5 files changed: 0 ins; 5 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1302.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1302/head:pull/1302

PR: https://git.openjdk.org/jdk21u-dev/pull/1302