[jdk8u-dev] RFR: 8278067: Make HttpURLConnection default keep alive timeout configurable [v6]

[Dhamoder Nalla]

> The JDK11 patch didn't apply cleanly 1/4 hunks needed to be port manually.
> 
> Test performed and passed:
> 
> 1. JTreg jdk_tier1, hotspot_tier1
> 2. Testcase attached this PR

Dhamoder Nalla has updated the pull request incrementally with one additional commit since the last revision:

  Add trailing spaces to make it consistent with 11u

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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/a78d9dc2..10ab2a4e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=437&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=437&range=04-05

  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