[jdk17u-dev] RFR: 8297211: Expensive fillInStackTrace operation in HttpURLConnection.getOutputStream0 when no content-length in response

[Ben Taylor]

Backporting to 17 for improved performance.
Backport is clean.

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Commit messages:
 - Backport 392ac7055d4697c56fa85ac5572f5bc4dc431f1d

Changes: https://git.openjdk.org/jdk17u-dev/pull/918/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=918&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297211
  Stats: 25 lines in 2 files changed: 9 ins; 0 del; 16 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/918.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/918/head:pull/918

PR: https://git.openjdk.org/jdk17u-dev/pull/918