RFR: JDK-8282017 : sun/net/www/protocol/https/HttpsURLConnection/B6216082.java fails with "SocketException: Unexpected end of file from server"

[Mahendra Chhipa]

Updated TunnelProxy to avoid twice read of Request line.

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

Commit messages:
 - JDK-8282017 : sun/net/www/protocol/https/HttpsURLConnection/B6216082.java

Changes: https://git.openjdk.java.net/jdk/pull/7519/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7519&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282017
  Stats: 5 lines in 2 files changed: 0 ins; 2 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7519.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7519/head:pull/7519

PR: https://git.openjdk.java.net/jdk/pull/7519