Thread: wait(); and notify();

How come my program stays in the wait(); state on line 74 and never moves on I have to manually exit the application. Here is my code

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Arrays;
import java.util.*;
import java.util.concurrent.locks.*;
import java.io.*;
import java.util.Random;
import java.beans.*;
import javax.swing.border.Border;
import javax.swing.ImageIcon;
 
public class PatchIt extends JFrame
{
 
   private JButton SCCM;
   private JButton Patches;
   private JButton Start;
   private JButton Exit;
   private ImageIcon logo;
   private JLabel icon;
   private JProgressBar progress = new JProgressBar();
   private int sleepTime;
   private boolean isReady = true;
   private final static Random generator = new Random();
 
   public PatchIt()
   {
      super("Patch It UP       By SrA Aaron Horan & SSgt Christopher Barrow");
             setLayout(new FlowLayout());
 
 
      logo = new ImageIcon("bisstrip.jpg");
 
      icon = new JLabel (logo);
 
      SCCM = new JButton("SCCM");
      SCCM.setToolTipText("This button will uninstall and reinstall Configuration manager");
 
      Patches = new JButton("Patches");
 
      sleepTime = generator.nextInt( 180000 );
 
      add(SCCM, BorderLayout.NORTH);
 
      add(icon, BorderLayout.CENTER );
 
      add(Patches, BorderLayout.SOUTH);
 
 
 
 
      ButtonHandler handler = new ButtonHandler();
 
      SCCM.addActionListener(handler);
 
 
 
   }
   private class ButtonHandler implements ActionListener
	{
		public void actionPerformed(ActionEvent event)  
      {
         if(event.getSource() == SCCM)
         {
            synchronized(this)
            {
               try
               {
 
                  Process EL = Runtime.getRuntime().exec("wscript C:\\Users\\1293714939A\\Desktop\\UAC.vbs");
                     try
                     {
                           wait();
 
                     }
                     catch (InterruptedException exception )
                     {
                     }
               }
               catch (IOException b)
               {
                  b.printStackTrace();
               }
            }
            synchronized(this)
            {
               try
               {
                  Process B = Runtime.getRuntime().exec("wscript C:\\Users\\1293714939A\\Desktop\\calctest.vbe");
                     notify();
               }
               catch (IOException b)
               {
                  b.printStackTrace();
               }
            }
          }
        }
      }
 
   public static void main (String [] args)
   {
 
 
      PatchIt run = new PatchIt();
      run.setSize(950,780);
      run.setVisible(true);
      run.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
 
   }
 
}