Java Programming

HI,
I am trying to write a simple application to transfer the files in a local directory to a remote server. I found a problem from the begining that am not able to resolve. Trying to identify the problem i just write this program:

public class TestFIS{

public static void main (String argv[]) {

try{
FileInputStream fis = new FileInputStream("i_sname.dbf");
ObjectInputStream ois = new ObjectInputStream(fis);
File file2 = (File) ois.readObject();
String name=file2.getName();
System.out.println(name);
ois.close();
}

catch(Exception e) {
e.printStackTrace();
}

}

But still throws the same exception:
java.io.StreamCorruptedException: invalid stream header

the stacktrace is:

java.io.StreamCorruptedException: invalid stream header
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783
)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at TestFIS.main(TestFIS.java:13)

i checked everything but couldn't get a solution and now i desperately need to know what am doing wrong. So i will appreciate if someone can tell me what's going on.

Thank you very much