[jdk17u-dev] RFR: 8333462: Performance regression of new DecimalFormat() when compare to jdk11

[Daniel Hu]

Clean backport. Fixes performance regression of DecimalFormat. Passes GHA.

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Commit messages:
 - Backport d826127970bd2ae8bf4cacc3c55634dc5af307c4

Changes: https://git.openjdk.org/jdk17u-dev/pull/4189/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4189&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333462
  Stats: 8 lines in 1 file changed: 3 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4189.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4189/head:pull/4189

PR: https://git.openjdk.org/jdk17u-dev/pull/4189