src/java.base/share/classes/java/util/jar/JarVerifier.java

*** 582,591 ****
--- 582,592 ----
      /*
       * Instances of this class hold uncopied references to internal
       * signing data that can be compared by object reference identity.
       */
      private static class VerifierCodeSource extends CodeSource {
+         @java.io.Serial
          private static final long serialVersionUID = -9047366145967768825L;
  
          URL vlocation;
          CodeSigner[] vsigners;
          java.security.cert.Certificate[] vcerts;