diff -r eb491334113f -r 119ac9128c1b src/java.base/share/classes/sun/nio/ch/SocketAdaptor.java
--- a/src/java.base/share/classes/sun/nio/ch/SocketAdaptor.java	Fri Oct 25 14:50:16 2019 +0100
+++ b/src/java.base/share/classes/sun/nio/ch/SocketAdaptor.java	Fri Oct 25 15:56:35 2019 +0100
@@ -53,17 +53,17 @@
     extends Socket
 {
     // The channel being adapted
-    private final SocketChannelImpl sc;
+    private final InetSocketChannelImpl sc;
 
     // Timeout "option" value for reads
     private volatile int timeout;
 
-    private SocketAdaptor(SocketChannelImpl sc) throws SocketException {
+    private SocketAdaptor(InetSocketChannelImpl sc) throws SocketException {
         super(DummySocketImpl.create());
         this.sc = sc;
     }
 
-    static Socket create(SocketChannelImpl sc) {
+    static Socket create(InetSocketChannelImpl sc) {
         PrivilegedExceptionAction<Socket> pa = () -> new SocketAdaptor(sc);
         try {
             return AccessController.doPrivileged(pa);
@@ -106,7 +106,7 @@
 
     @Override
     public InetAddress getInetAddress() {
-        InetSocketAddress remote = sc.remoteAddress();
+        InetSocketAddress remote = (InetSocketAddress)sc.remoteAddress();
         if (remote == null) {
             return null;
         } else {
@@ -117,7 +117,7 @@
     @Override
     public InetAddress getLocalAddress() {
         if (sc.isOpen()) {
-            InetSocketAddress local = sc.localAddress();
+            InetSocketAddress local = (InetSocketAddress)sc.localAddress();
             if (local != null) {
                 return Net.getRevealedLocalAddress(local).getAddress();
             }
@@ -127,7 +127,7 @@
 
     @Override
     public int getPort() {
-        InetSocketAddress remote = sc.remoteAddress();
+        InetSocketAddress remote = (InetSocketAddress)sc.remoteAddress();
         if (remote == null) {
             return 0;
         } else {
@@ -137,7 +137,7 @@
 
     @Override
     public int getLocalPort() {
-        InetSocketAddress local = sc.localAddress();
+        InetSocketAddress local = (InetSocketAddress)sc.localAddress();
         if (local == null) {
             return -1;
         } else {
@@ -152,7 +152,7 @@
 
     @Override
     public SocketAddress getLocalSocketAddress() {
-        InetSocketAddress local = sc.localAddress();
+        InetSocketAddress local = (InetSocketAddress)sc.localAddress();
         if (local != null) {
             return Net.getRevealedLocalAddress(local);
         } else {