hg: jdk/sandbox: 8177648: getResponseCode() throws IllegalArgumentException caused by protocol error while following redirect

[chris.hegarty at oracle.com]

Changeset: 095c2f21dd10
Author:    michaelm
Date:      2019-08-26 12:25 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/095c2f21dd10

8177648: getResponseCode() throws IllegalArgumentException caused by protocol error while following redirect
Reviewed-by: michaelm, chegar, dfuchs
Contributed-by: jai.forums2013 at gmail.com

! src/java.base/share/classes/java/net/ProxySelector.java
! src/java.base/share/classes/sun/net/www/protocol/ftp/FtpURLConnection.java
! src/java.base/share/classes/sun/net/www/protocol/http/HttpURLConnection.java
+ test/jdk/java/net/HttpURLConnection/HttpURLProxySelectionTest.java
+ test/jdk/sun/net/spi/DefaultProxySelectorTest.java