src/java.base/share/classes/java/util/Arrays.java

*** 4337,4346 ****
--- 4337,4347 ----
      private static class ArrayList<E> extends AbstractList<E>
          implements RandomAccess, java.io.Serializable
      {
          @java.io.Serial
          private static final long serialVersionUID = -2764017481108945198L;
+         @SuppressWarnings("serial") // Not statically typed as Serializable
          private final E[] a;
  
          ArrayList(E[] array) {
              a = Objects.requireNonNull(array);
          }