Bugs Fixed in GemFire 6.6.2

public class User {
  final public String name;
  final public int userId;

  public User(String name, int userId) {
    this.name = name;
    this.userId = userId;
  }
}

public class MyPdxSerializer implements PdxSerializer {
  public boolean toData(Object o, PdxWriter out) {
    if (o instanceof User) {
      User u = (User)o;
      out.writeString("name", u.name);
      out.writeInt("userId", u.userId);
      return true;
    } else {
      return false;
    }
  }
  public Object fromData(Class<?> clazz, PdxReader in) {
    if (User.class.isAssignableFrom(clazz)) {
      return new User(in.readString("name"), in.readInt("userId"));
    } else {
      return null;
    }
  }
}