On 16/04/2012 14:49, Salter, Thomas A wrote:
[I'm not sure if I should post this to net-dev, nio-dev or something
else, so I posted to both.]
I have a trivial DatagramChannel program that fails on Windows if run
with Java.net.preferIPv6Addresses=true. The exception and code are
included below.
The problem is that when the bind parameter is null,
DatagramChannelImpl calls new InetSocketAddress(0), but that returns
an AF_INET6 address when preferIPv6Addresses=true. Even when the
caller passes a SocketAddress to bind, it's hard to get it right if
you want to specify the any address or the loopback address. The
methods to get these addresses all change their behavior based on the
setting of preferIPv6Addresses.
Just to confirm that this duplicates on Solaris and Mac too. We'll need
to change the bind method so that the null case uses
InetAddress.getByName("0.0.0.0") when the DatagramChannel is connected
to an IPv4 socket. I'll create a bug for this.
-Alan
