Test java/net/Socket/B8312065.java fails "java.net.ConnectException: Network is unreachable (connect failed)" on some machines.

The test log snippet:
STDOUT:
SIGPIPE
STDERR:
java.net.ConnectException: Network is unreachable (connect failed)
        at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412)
        at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255)
        at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237)
        at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.base/java.net.Socket.connect(Socket.java:668)
        at B8312065.main(B8312065.java:77)