--- a/src/java.base/unix/classes/sun/nio/ch/UnixAsynchronousSocketChannelImpl.java	Fri Jun 22 18:19:26 2018 +0200
+++ b/src/java.base/unix/classes/sun/nio/ch/UnixAsynchronousSocketChannelImpl.java	Fri Jun 22 18:10:20 2018 +0100
@@ -32,6 +32,7 @@
 import java.io.IOException;
 import java.io.FileDescriptor;
 import sun.net.NetHooks;
+import sun.net.util.SocketExceptions;
 import sun.security.action.GetPropertyAction;
 
 /**
@@ -258,6 +259,10 @@
             end();
         }
         if (e != null) {
+            if (e instanceof IOException) {
+                var isa = (InetSocketAddress)pendingRemote;
+                e = SocketExceptions.of((IOException)e, isa);
+            }
             // close channel if connection cannot be established
             try {
                 close();
@@ -350,6 +355,9 @@
 
         // close channel if connect fails
         if (e != null) {
+            if (e instanceof IOException) {
+                e = SocketExceptions.of((IOException)e, isa);
+            }
             try {
                 close();
             } catch (Throwable suppressed) {