Is this project this active? Are there folks here that work on the
xxxBSD ports?
JDK-8231259 [1] is a bug submitted against the
java.nio.channels.DatagramChannel implementation on macOS a few days
ago. It looks like a macOS bug, rather than a JDK bug.
The scenario is a UDP socket is bound to a specific local address,
connected, and then disconnected (to dissolve the association). It seems
that the disconnect changes the local address (as reported by
getsocketname) to the wildcard address (INADDR_ANY or the IPv6
equivalent). There are several ways to disconnect (disconnectx, connect
with an invalid address, or connect with a family of AF_UNSPEC) and the
unexplained behavior arises with all.
If there are still people here then I'm wondering if the same behavior
is observed on other BSD operating systems. That is, does UDP disconnect
deliberately change the local address to INADDR_ANY?
Thanks,
-Alan
[1] https://bugs.openjdk.java.net/browse/JDK-8231259
