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

@@ -582,10 +582,11 @@
     /*
      * 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;