hg: jdk/sandbox: http-client-branch: minor cleanup and improve testing for response version and session

[chris.hegarty at oracle.com]

Changeset: 99f144742013
Author:    chegar
Date:      2018-02-15 12:31 +0000
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/99f144742013

http-client-branch: minor cleanup and improve testing for response version and session

! src/java.net.http/share/classes/java/net/http/HttpResponse.java
! test/jdk/java/net/httpclient/CustomRequestPublisher.java