RFR: 8278067: Make HttpURLConnection default keep alive timeout configurable [v4]

[Michael McMahon]

> Hi,
> 
> Could I get the following patch reviewed please? (A CSR is also required which I will submit when the docs are agreed)
> 
> It adds a pair of new system properties to make the keep alive timer in java.net.HttpURLConnection configurable.
> The proposed property names are:
> 
> "http.keepAlive.time.server" and "http.keepAlive.time.proxy"
> 
> Thanks,
> Michael

Michael McMahon has updated the pull request incrementally with one additional commit since the last revision:

  Fixed test case problem and update from Daniel's review

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7349/files
  - new: https://git.openjdk.java.net/jdk/pull/7349/files/b0b7673c..79f64a76

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7349&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7349&range=02-03

  Stats: 22 lines in 1 file changed: 5 ins; 6 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7349.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7349/head:pull/7349

PR: https://git.openjdk.java.net/jdk/pull/7349