--- old/src/java.base/share/classes/java/net/AbstractPlainDatagramSocketImpl.java	2019-05-17 12:07:36.311649194 +0100
+++ new/src/java.base/share/classes/java/net/AbstractPlainDatagramSocketImpl.java	2019-05-17 12:07:36.031649203 +0100
@@ -31,6 +31,7 @@
 import java.util.Set;
 
 import sun.net.ResourceManager;
+import sun.net.util.IPAddressUtil;
 import sun.security.action.GetPropertyAction;
 
 /**
@@ -128,10 +129,12 @@
      */
     protected synchronized void bind(int lport, InetAddress laddr)
         throws SocketException {
-        bind0(lport, laddr);
+        int scopeId = IPAddressUtil.bindingScopeId(laddr);
+        assert laddr instanceof Inet4Address ? scopeId == -1 :true;
+        bind0(lport, laddr, scopeId);
     }
 
-    protected abstract void bind0(int lport, InetAddress laddr)
+    protected abstract void bind0(int lport, InetAddress laddr, int scopeId)
         throws SocketException;
 
     /**