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

*** 149,158 ****
--- 149,159 ----
   *
   * @since 1.8
   */
  public final class URLPermission extends Permission {
  
+     @java.io.Serial
      private static final long serialVersionUID = -2702463814894478682L;
  
      private transient String scheme;
      private transient String ssp;                 // scheme specific part
      private transient String path;
*** 503,512 ****
--- 504,514 ----
      }
  
      /**
       * restore the state of this object from stream
       */
+     @java.io.Serial
      private void readObject(ObjectInputStream s)
          throws IOException, ClassNotFoundException {
          ObjectInputStream.GetField fields = s.readFields();
          String actions = (String)fields.get("actions", null);