Errors in making jar file

Question

Hi all,
The following is the simple bean I try to make
import java.awt.*;
import java.io.Serializable;
public class SimpleBean extends Canvas
implements Serializable {
private Color color = Color.green;
//getter method
public Color getColor() {
     return color;
//setter method
public void setColor(Color newColor) {
     color = newColor;
     repaint();
//override paint method
public void paint (Graphics g) {
     g.setColor(color);
     g.fillRect(20,5,20,30);
//Constructor: sets inherited properties
public SimpleBean() {
     setSize(60,40);
     setBackground(Color.red);
It is compile without problem. Now I try to make a jar file. First, I made a manifest file as follow:
Name:SimpleBean.class
Java-Bean:True
and I had a carriage return at end of the file. Next, I issue
jar cfm SimpleBean.jar manifest.tmp SimpleBean.class
at the command line, but I got:
java.io.IOException: invalid header field
at java.util.jar.Attributes.read(Attributes.java:353)
at java.util.jar.Manifest.read(Manifest.java:159)
at java.util.jar.Manifest.<init>(Manifest.java:59)
at sun.tools.jar.Main.run(Main.java:124)
at sun.tools.jar.Main.main(Main.java:778)
What did I do wrong? Please help,
Wei

Answer 1

check this http://java.sun.com/docs/books/tutorial/jar/basics/manifest.html