RFR: JDK-8286610: Add additional diagnostic output to java/net/DatagramSocket/InterruptibleDatagramSocket.java

[Mark Sheppard]

On Sat, 25 Jun 2022 05:24:23 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Failure was observed on java/net/DatagramSocket/InterruptibleDatagramSocket.java where data was received unexpectedly ( [JDK-8286607](https://bugs.openjdk.org/browse/JDK-8286607)). This failure could be caused by interference from other ongoing tests. The fix here is to output the unexpected received data and the sender's address for a further investigation ([JDK-8286610](https://bugs.openjdk.org/browse/JDK-8286610)).
>
> test/jdk/java/net/DatagramSocket/InterruptibleDatagramSocket.java line 101:
> 
>> 99:     public static void main(String[] args) throws Exception {
>> 100:         try (DatagramSocket s = new DatagramSocket()) {
>> 101:             System.out.println("Established uninterruptible datagram socket "
> 
> "Established uninterruptible datagram socket" is a bit strange. I think I you want to this to say "Created datagram socket bound to port %d".

I think information on the scenario under test would be useful, such as, 
"Testing interrupt of DatagramSocket  receive on endpoint " + s.getLocalSocketAddress()

"Testing interrupt of MulticastSocket receive on endpoint " + s.getLocalSocketAddress()

"Testing interrupt of DatagramChannel socket receive on endpoint " + s.getLocalSocketAddress()

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PR: https://git.openjdk.org/jdk/pull/9278