Netbeans Jmenu Popup Only Sometimes Works

I am having issue with jmenu popup in netbeans. It only sometimes works. Sometimes I don't get a java popup at all. Sometimes my File and Edit options are completely missing. This is what my code looks like.

import javax.swing.*;
public class menu {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
JFrame f = new JFrame();
f.setVisible(true);

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