Serialization in Java, invalid type code 00

Question

I\'m getting an error (java.io.StreamCorruptedException: invalid type code: 00) when reading in a serialised object. Here is the class that implements serializable:

Answer 1

Run to get the answer:

package so.java9217010;
import java.io.*;

public class SerializeMe implements Serializable{


    private String foo;
    private static final long serialVersionUID = 1;
    private static final int CURRENT_SERIAL_VERSION = 1;

    public SerializeMe(String foo) {
        this.foo = foo;
    }
    public SerializeMe(){
    }

    public SerializeMe readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
        int version = in.readInt();
        if (version != CURRENT_SERIAL_VERSION)
            throw new ClassNotFoundException("Mismatched NaiveBayesTrainer versions: wanted " +
                    CURRENT_SERIAL_VERSION + ", got " +
                    version);

        //default selections for the kind of Estimator used

        return (SerializeMe) in.readObject();
        // nb = test.returnNB();
    }

    public void writeObject(ObjectOutputStream out) throws IOException
    {
        out.writeInt(CURRENT_SERIAL_VERSION);

        //default selections for the kind of Estimator used
        out.writeObject(this);
    }

    public String returnNB(){
        return foo;
    }

    public void setNB(String foo){
        this.foo = foo;
    }
    public static void main(String[] args) throws Exception {
        SerializeMe o = new SerializeMe("hello");
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream oout = new ObjectOutputStream(bout);

        o.writeObject(oout);
        oout.flush();
        byte[] buff = bout.toByteArray();

        ByteArrayInputStream bin = new ByteArrayInputStream(buff);
        ObjectInputStream oin = new ObjectInputStream(bin);
        SerializeMe ro = o.readObject(oin);
        System.out.format(
                "got: %s -- the problem is most likely in the library you are using ...\n",
                      ro.returnNB());
    }
}