code: private void initialize() {
  		this.addActionListener(new java.awt.event.ActionListener() {
  			@Override
  			public void actionPerformed(java.awt.event.ActionEvent e) {
  				// Get the HttpSessionsSite
  				HttpSessionsPanel panel = extension.getHttpSessionsPanel();
  				HttpSessionsSite site = panel.getCurrentHttpSessionSite();
  				if (site == null)
  					return;
  
  				// Get the selected session, mark it as active and trigger a table repaint
  				HttpSession item = panel.getSelectedSession();
  				site.setActiveSession(item);
  			}
  		});
  
  	}
docs: Initialize the popup menu.