src/java.base/share/classes/com/sun/java/util/jar/pack/Instruction.java

*** 677,686 ****
--- 677,687 ----
              }
              i = i.next();
          }
      }
      static class FormatException extends IOException {
+         @java.io.Serial
          private static final long serialVersionUID = 3175572275651367015L;
  
          FormatException(String message) {
              super(message);
          }