About Question enthuware.ocpjp.v8.2.1620 :

[admin]

I have updated the problem statement to, "Which fields of the above class will be have the same values ..." instead of "preserved". That should make it very clear

thank you for your feedback!
Paul.

[Cannelids]

Thanks Paul (though I realise the real exam might have ambiguities anyway )

[ssszzz]

For me it is not clear yet about this 'f4'

Which fields of the above class will be have the same values ...

What if the code was changed?
The following snippet shows it is okay if we just change constant value:

Code: Select all

public class Test35 {

    public static void main(String... strings) throws IOException, ClassNotFoundException {
        String file = "./test.data";
        /*Data d = new Data();
        d.f1 = "f1";
        d.f2 = 2;
        d.f3 = true;
        try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file))) {
            out.writeObject(d);
        }*/
        Data d2 = null;
        try (ObjectInputStream in = new ObjectInputStream(new FileInputStream(file))) {
            d2 = (Data) in.readObject();
        }
        System.out.println(d2);
    }
}

class Data implements java.io.Serializable {
    public static String f1;
    public static transient int f2;
    public transient boolean f3;
    public final static String f4 = "442";
    public String f5 = "5";
}

But if we comment out line 'public final static String f4' or change variable name then we get exception while deserialization about 'serialVersionUID' as expected.
Tested on build 1.8.0_45-b15

But, of course,

the above class

should meant that this class remains untouched, yeah?

[admin]

That is correct. No change in class code.