Java中从文件中读取ArrayList报错

代码

public class Data {
private File file=new File("e:"+File.separator+"message.txt");
private ObjectInputStream ois;
private ObjectOutputStream oos;
public ArrayList read() throws FileNotFoundException, IOException{
ArrayList list=new ArrayList();
ois=new ObjectInputStream(new FileInputStream(file));
    try {
        list=(ArrayList<Message>) ois.readObject();//报错的位置
        ois.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return list;
}
public void write(ArrayList<Message> list){
    try {
        oos=new ObjectOutputStream(new FileOutputStream(file));

        oos.writeObject(list);
        oos.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
}

java.io.EOFException
at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)