https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=233406
* gnu/java/net/natPlainSocketImplPosix.cc (create): Return if
already created.
* gnu/java/net/PlainSocketImpl.java (getLocalAddress): Handle case
where localport is -1.
(create): Now public.
* gnu/java/nio/SocketChannelImpl.java (SocketChannelImpl): Call
'create' on the socket.
From-SVN: r123440