--- old/src/java.base/share/classes/sun/nio/ch/Net.java	2018-05-03 16:52:24.718492753 -0700
+++ new/src/java.base/share/classes/sun/nio/ch/Net.java	2018-05-03 16:52:24.488492768 -0700
@@ -54,7 +54,7 @@
 
 public class Net {
 
-    private Net() { }
+    protected Net() { }
 
     // unspecified protocol family
     static final ProtocolFamily UNSPEC = new ProtocolFamily() {
@@ -79,7 +79,7 @@
     /**
      * Tells whether dual-IPv4/IPv6 sockets should be used.
      */
-    static boolean isIPv6Available() {
+    protected static boolean isIPv6Available() {
         if (!checkedIPv6) {
             isIPv6Available = isIPv6Available0();
             checkedIPv6 = true;
@@ -196,7 +196,7 @@
         translateToSocketException(x);
     }
 
-    static void translateException(Exception x)
+    public static void translateException(Exception x)
         throws IOException
     {
         translateException(x, false);
@@ -205,7 +205,7 @@
     /**
      * Returns the local address after performing a SecurityManager#checkConnect.
      */
-    static InetSocketAddress getRevealedLocalAddress(InetSocketAddress addr) {
+    public static InetSocketAddress getRevealedLocalAddress(InetSocketAddress addr) {
         SecurityManager sm = System.getSecurityManager();
         if (addr == null || sm == null)
             return addr;
@@ -220,7 +220,7 @@
         return addr;
     }
 
-    static String getRevealedLocalAddressAsString(InetSocketAddress addr) {
+    public static String getRevealedLocalAddressAsString(InetSocketAddress addr) {
         return System.getSecurityManager() == null ? addr.toString() :
                 getLoopbackAddress(addr.getPort()).toString();
     }