hg: jdk9/sandbox/jdk: 8181430: HTTP/2 client might deadlock when receiving data during the initial handshake

[chris.hegarty at oracle.com]

Changeset: 4287c7853433
Author:    dfuchs
Date:      2017-06-08 12:24 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/4287c7853433

8181430: HTTP/2 client might deadlock when receiving data during the initial handshake
Summary: CountDownLatch removed. Data produced during the handshake is instead buffered until the preface is sent.
Reviewed-by: michaelm, msheppar, prappo

! src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/Http2Connection.java