RFR: JDK-8212035 : merge jdk.test.lib.util.SimpleHttpServer with jaxp.library.SimpleHttpServer [v2]

[Mahendra Chhipa]

> jaxp.library.SimpleHttpServer
> https://bugs.openjdk.java.net/browse/JDK-8212035

Mahendra Chhipa has updated the pull request incrementally with one additional commit since the last revision:

  Implemented the review comments.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1632/files
  - new: https://git.openjdk.java.net/jdk/pull/1632/files/f48a3f7a..71fc7e9f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1632&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1632&range=00-01

  Stats: 145 lines in 3 files changed: 26 ins; 33 del; 86 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1632.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1632/head:pull/1632

PR: https://git.openjdk.java.net/jdk/pull/1632