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

*** 249,258 ****
--- 249,259 ----
                              break outer;                      // sib not ready
                      }
                  }
              }
          }
+         @java.io.Serial
          private static final long serialVersionUID = 5293554502939613543L;
      }
  
      static final class LongCumulateTask extends CountedCompleter<Void> {
          final long[] array;
*** 399,408 ****
--- 400,410 ----
                              break outer;                      // sib not ready
                      }
                  }
              }
          }
+         @java.io.Serial
          private static final long serialVersionUID = -5074099945909284273L;
      }
  
      static final class DoubleCumulateTask extends CountedCompleter<Void> {
          final double[] array;
*** 549,558 ****
--- 551,561 ----
                              break outer;                      // sib not ready
                      }
                  }
              }
          }
+         @java.io.Serial
          private static final long serialVersionUID = -586947823794232033L;
      }
  
      static final class IntCumulateTask extends CountedCompleter<Void> {
          final int[] array;
*** 699,706 ****
--- 702,710 ----
                              break outer;                      // sib not ready
                      }
                  }
              }
          }
+         @java.io.Serial
          private static final long serialVersionUID = 3731755594596840961L;
      }
  }