Hi all, The copyright year of some files which has been changed by [JDK-8341692](https://bugs.openjdk.org/browse/JDK-8341692) wasn't update correctly. This PR update the copyright year of [JDK-8341692](https://bugs.openjdk.org/browse/JDK-8341692). Trivial fix, no risk.
------------- Commit messages: - delete tail whitespace of test/hotspot/jtreg/serviceability/dcmd/gc/HeapDumpCompressedTest.java - 8343490: Update copyright year for JDK-8341692 Changes: https://git.openjdk.org/jdk/pull/21891/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21891&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8343490 Stats: 66 lines in 66 files changed: 2 ins; 0 del; 64 mod Patch: https://git.openjdk.org/jdk/pull/21891.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/21891/head:pull/21891 PR: https://git.openjdk.org/jdk/pull/21891
