hg: jdk/jdk: 8241988: DatagramSocket incorrectly caches the first set of socket options

[chris.hegarty at oracle.com]

Changeset: 398ff7d301a4
Author:    chegar
Date:      2020-04-03 07:16 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/398ff7d301a4

8241988: DatagramSocket incorrectly caches the first set of socket options
Reviewed-by: msheppar, dfuchs, alanb

! src/java.base/share/classes/java/net/DatagramSocket.java
! src/java.base/share/classes/java/net/MulticastSocket.java
+ test/jdk/java/net/SocketOption/CachedImplOptions.java