src/java.base/share/classes/java/net/DatagramSocketImpl.java

*** 56,65 ****
--- 56,70 ----
   */
  
  public abstract class DatagramSocketImpl implements SocketOptions {
  
      /**
+      * Constructor for subclasses to call.
+      */
+     public DatagramSocketImpl() {}
+ 
+     /**
       * The local port number.
       */
      protected int localPort;
  
      /**