src/java.base/share/classes/java/util/concurrent/atomic/DoubleAccumulator.java

*** 82,91 ****
--- 82,92 ----
   * @author Doug Lea
   */
  public class DoubleAccumulator extends Striped64 implements Serializable {
      private static final long serialVersionUID = 7249069246863182397L;
  
+     @SuppressWarnings("serial") // Not statically typed as Serializable
      private final DoubleBinaryOperator function;
      private final long identity; // use long representation
  
      /**
       * Creates a new instance using the given accumulator function
*** 243,252 ****
--- 244,254 ----
  
          /**
           * The function used for updates.
           * @serial
           */
+         @SuppressWarnings("serial") // Not statically typed as Serializable
          private final DoubleBinaryOperator function;
  
          /**
           * The identity value, represented as a long, as converted by
           * {@link Double#doubleToRawLongBits}.  The original identity