JButton + Thread: quase lá

public class MainGuiTest extends javax.swing.JFrame {    

    private Thread t = new Thread(new TarefaContinua());
	
    public MainGuiTest() {
        initComponents();
    }   
      
    public static void main(String args[]) {
        new MainGuiTest().setVisible(true);
    }       
	
    ActionListener ActionStart = new ActionListener() {		    
	     public void actionPerformed(ActionEvent e) {
		     t.start();		
	     }
    };

    ActionListener ActionPause = new ActionListener() {		    
		public void actionPerformed(ActionEvent e) {           	
			jTextArea1.append("\nProcesso em espera...");           	
           	try{
           		t.wait();
           	}catch(InterruptedException ie){
           		jTextArea1.append("\nErro: "+ie.getMessage());
           	}
        }           							
	};
	
	ActionListener ActionResume = new ActionListener() {		    
		public void actionPerformed(ActionEvent e) {           	
			jTextArea1.append("\nProcesso retomado...");
      		t.notify();           	
        }           							
	};

public class TarefaContinua implements Runnable {	
	public void run() {
         for(int w=1; w<=5000; w++){
					MainGuiTest.jTextArea1.append("\nec.VerificaIndividuos();"+w);
		 }
    }
}