hg: jdk9/hs/jdk: 8167337: When jmxremote.port=0, JDP broadcasts "0" instead of assigned port

[rahul.v.raghavan at oracle.com]

Changeset: 79dbfcdbe1b0
Author:    rraghavan
Date:      2017-01-20 04:42 -0800
URL:       http://hg.openjdk.java.net/jdk9/hs/jdk/rev/79dbfcdbe1b0

8167337: When jmxremote.port=0, JDP broadcasts "0" instead of assigned port
Summary: Fetched the correct jmx service url for jdp to broadcast it.
Reviewed-by: dsamersoff, rriggs
Contributed-by: amit.sapre at oracle.com

! src/java.management/share/classes/sun/management/Agent.java
! test/sun/management/jdp/DynamicLauncher.java
+ test/sun/management/jdp/JdpJmxRemoteDynamicPortTest.java
+ test/sun/management/jdp/JdpJmxRemoteDynamicPortTestCase.java