hg: jdk9/sandbox/jdk: http-client-branch: Fixed one missing exception handling in PushGroup. Allow MultiResponseProcessor to return Optional.empty() for the body of the main request.

[daniel.fuchs at oracle.com]

Changeset: 6d5e8ce7a6c3
Author:    dfuchs
Date:      2016-08-31 16:29 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/6d5e8ce7a6c3

http-client-branch: Fixed one missing exception handling in PushGroup. Allow MultiResponseProcessor to return Optional.empty() for the body of the main request.

! src/java.httpclient/share/classes/java/net/http/PushGroup.java
! src/java.httpclient/share/classes/java/net/http/Stream.java