salut
j'ai un JPopupMenu qui ne s'affiche pas si je clic droit avec la souris
voila le code

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import javax.swing.SwingUtilities;
 
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JPopupMenu;
import javax.swing.JMenuItem;
import javax.swing.JTextField;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
 
public class coller extends JFrame {
 
 
 
	private JPanel jContentPane = null;
 
 
	private  JPopupMenu jPopupMenu = new JPopupMenu();
	private JMenuItem jMenuItem = null;
 
	private JTextField jTextField = null;
 
 
	private JPopupMenu getJPopupMenu() {
		if (jPopupMenu == null) {
			jPopupMenu = new JPopupMenu();
			jPopupMenu.add(getJMenuItem());
		}
		return jPopupMenu;
	}
 
 
	private JMenuItem getJMenuItem() {
		if (jMenuItem == null) {
			jMenuItem = new JMenuItem();
			jMenuItem.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
 
					jTextField.paste();
				}
			});
			jMenuItem.addMouseListener(new java.awt.event.MouseAdapter() {
				 public void mousePressed(MouseEvent e) {
				        checkPopup(e);
				      }
 
				      public void mouseClicked(MouseEvent e) {
				        checkPopup(e);
				      }
				 public void mouseReleased(MouseEvent e) {
				        checkPopup(e);
				      }
				  private void checkPopup(MouseEvent e) {
				        if (e.isPopupTrigger()) {
				        	jPopupMenu .show(coller.this, e.getX(), e.getY());
				        }
				      }
			});
		}
		return jMenuItem;
	}
 
	private JTextField getJTextField() {
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setBounds(new Rectangle(142, 24, 100, 57));
		}
		return jTextField;
	}
 
	public static void main(String[] args) {
 
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				coller thisClass = new coller();
				thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				thisClass.setVisible(true);
			}
		});
	}
 
 
	public coller() {
		super();
		initialize();
	}
 
 
	private void initialize() {
		this.setSize(300, 200);
		this.setContentPane(getJContentPane());
		this.setTitle("JFrame");
	}
 
 
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(getJTextField(), null);
		}
		return jContentPane;
	}
 
}