GetSerVersUID.java Source code

Introduction

Here is the source code for GetSerVersUID.java

Source

import java.io.ObjectStreamClass;

/**
 * This program shows how to use getSerialVersionUID for a class that isn't in a
 * package and thus not findable to the normal "serialver" tool.
 * 
 * @author Ian Darwin, http://www.darwinsys.com/
 */
public class GetSerVersUID {
    static final String ident = "$Id: GetSerVersUID.java,v 1.5 2004/02/09 03:33:53 ian Exp $";

    public static void main(String[] av) throws Exception {

        // First we construct a Class object for the given class
        Class cl = Class.forName("Candidate");

        // Then an ObjectStreamClass for the given class
        ObjectStreamClass ocl = ObjectStreamClass.lookup(cl);

        // And use the ObjectStreamClass to get the Class'
        // unique SerialVersionUID
        System.out.println("For class " + cl);
        System.out.println("static final long serialVersionUID = " + ocl.getSerialVersionUID() + "L;"); // must be long

        // And just for reference...
        System.out.println("(Must range from " + Long.MIN_VALUE + " to " + Long.MAX_VALUE + ".)");
    }
}