hg: jdk/jdk: 8240533: Inconsistent Exceptions are thrown by DatagramSocket and DatagramChannel when sending a DatagramPacket to port 0.

[patrick.concannon at oracle.com]

Changeset: 7af5ec0eb4f4
Author:    pconcannon
Date:      2020-04-07 16:21 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/7af5ec0eb4f4

8240533: Inconsistent Exceptions are thrown by DatagramSocket and DatagramChannel when sending a DatagramPacket to port 0.
Summary: Fix adds checks for port == 0 to the send and connect methods in DatagramSocket and DatagramChannelImpl
Reviewed-by: alanb, chegar, dfuchs, lancea

! src/java.base/share/classes/java/net/DatagramSocket.java
! src/java.base/share/classes/sun/nio/ch/DatagramChannelImpl.java
+ test/jdk/java/net/DatagramSocket/ConnectPortZero.java
+ test/jdk/java/net/DatagramSocket/SendPortZero.java
+ test/jdk/java/nio/channels/DatagramChannel/ConnectPortZero.java
+ test/jdk/java/nio/channels/DatagramChannel/SendPortZero.java