OnJava8-Examples/io/xfiles/ThawAlien.java

//: io/xfiles/ThawAlien.java
// Try to recover a serialized file without the
// class of object that's stored in that file.
// {ThrowsException}
import java.io.*;

public class ThawAlien {
  public static void main(String[] args) throws Exception {
    ObjectInputStream in = new ObjectInputStream(
      new FileInputStream(new File("..", "X.file")));
    Object mystery = in.readObject();
    System.out.println(mystery.getClass());
  }
} ///:~