src/java.base/share/classes/java/lang/ExceptionInInitializerError.java

@@ -48,10 +48,11 @@
  */
 public class ExceptionInInitializerError extends LinkageError {
     /**
      * Use serialVersionUID from JDK 1.1.X for interoperability
      */
+    @java.io.Serial
     private static final long serialVersionUID = 1521711792217232256L;
 
     /**
      * Constructs an <code>ExceptionInInitializerError</code> with
      * <code>null</code> as its detail message string and with no saved

@@ -107,10 +108,11 @@
     /**
      * Serializable fields for ExceptionInInitializerError.
      *
      * @serialField exception Throwable
      */
+    @java.io.Serial
     private static final ObjectStreamField[] serialPersistentFields = {
         new ObjectStreamField("exception", Throwable.class)
     };
 
     /*

@@ -120,10 +122,11 @@
      *
      * The getException and getCause method returns the private "exception"
      * field in the older implementation and ExceptionInInitializerError::cause
      * was set to null.
      */
+    @java.io.Serial
     private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException {
         ObjectInputStream.GetField fields = s.readFields();
         Throwable exception = (Throwable) fields.get("exception", null);
         if (exception != null) {
             setCause(exception);

@@ -132,10 +135,11 @@
 
     /*
      * To maintain compatibility with older implementation, write a serial
      * "exception" field with the cause as the value.
      */
+    @java.io.Serial
     private void writeObject(ObjectOutputStream out) throws IOException {
         ObjectOutputStream.PutField fields = out.putFields();
         fields.put("exception", super.getCause());
         out.writeFields();
     }