[jdk13u-dev] RFR: 8238270: java.net HTTP/2 client does not decrease stream count when receives 204 response

[Yuri Nesterenko]

8238270: java.net HTTP/2 client does not decrease stream count when receives 204 response

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Commit messages:
 - Backport da1abd18db7c38c421a86b81941811c035ed3ed5

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/13/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=13&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8238270
  Stats: 342 lines in 4 files changed: 336 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/13.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/13/head:pull/13

PR: https://git.openjdk.java.net/jdk13u-dev/pull/13