title: Use custom setter in Lombok's builder with superclass
body: <p>I want to use custom setter in Lombok's builder and overwrite 1 method, like this </p>
  
  <pre><code>@SuperBuilder
  public class User implements Employee {
      private static final PasswordEncoder ENCODER = new BCryptPasswordEncoder();
  
      private String username;
  
      private String password;
  
      public static class UserBuilder {
          public UserBuilder password(String password) {
              this.password = ENCODER.encode(password);
              return this;
          }
      }
  }
  </code></pre>
  
  <p>but I have this compilation error</p>
  
  <pre><code>Existing Builder must be an abstract static inner class.
  </code></pre>