[jdk8u-dev] RFR: 8278067: Make HttpURLConnection default keep alive timeout configurable [v3]

[Dhamoder Nalla]

> The JDK11 patch doesn't apply cleanly 1/4 hunks need to be ported manually.
> 
> Test performed:
> 
> 1. JTreg jdk_tier1, hotspot_tier1
> 2. Testcase attached this PR

Dhamoder Nalla has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  Remove SystemProperty tag as it is not supported in JDK8

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Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/437/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/437/files/22fb611b..f44e27ba

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=437&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=437&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/437.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/437/head:pull/437

PR: https://git.openjdk.org/jdk8u-dev/pull/437