hg: jdk/sandbox: 8249773: Upgrade ReceiveISA.java test to be resilient to failure due to stray packets and interference

[chris.hegarty at oracle.com]

Changeset: e1e3f9d9b7f6
Author:    ryadav
Date:      2020-08-13 17:48 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/e1e3f9d9b7f6

8249773: Upgrade ReceiveISA.java test to be resilient to failure due to stray packets and interference
Summary: This fix upgrades java/nio/channels/DatagramChannel/ReceiveISA.java so it can handle interference from stray packets.
Reviewed-by: alanb, dfuchs

! test/jdk/java/nio/channels/DatagramChannel/ReceiveISA.java