Problème affichage composants

Bonjour,
Je débute en GWT et j'ai le plugin d'ainstallé et qui pointe sur le SDK 2.4.0
mais j'ai l'impression que la partie dynamique n'apparait pas dans ma page html.
Ci-dessous mon code ainsi que la capture d'écran de la structure de mon projet:

Lili.html

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<html>
	<head>
 
		<!--                                           -->
		<!-- Any title is fine                         -->
		<!--                                           -->
		<title>Wrapper HTML for HelloGWT</title>
 
		<!--                                           -->
		<!-- Use normal html, such as style            -->
		<!--                                           -->
		<style>
			body,td,a,div,.p{font-family:arial,sans-serif}
			div,td{color:#000000}
			a:link,.w,.w a:link{color:#0000cc}
			a:visited{color:#551a8b}
			a:active{color:#ff0000}
		</style>
 
		<!--                                           -->
		<!-- The module reference below is the link    -->
		<!-- between html and your Web Toolkit module  -->		
		<!--                                           -->
		<meta name='gwt:module' content='com.mafanta.test.client.Lili'>
 
	</head>
 
	<!--                                           -->
	<!-- The body can have arbitrary html, or      -->
	<!-- you can leave the body empty if you want  -->
	<!-- to create a completely dynamic ui         -->
	<!--                                           -->
	<body>
 
		<!--                                            -->
		<!-- This script is required bootstrap stuff.   -->
		<!-- You can put it in the HEAD, but startup    -->
		<!-- is slightly faster if you include it here. -->
		<!--                                            -->
		<script language="javascript" src="gwt.js"></script>
 
		<!-- OPTIONAL: include this if you want history support -->
		<iframe id="__gwt_historyFrame" style="width:0;height:0;border:0"></iframe>
 
		<h1>HelloGWT</h1>
 
		<p>
			This is an example of a host page for the HelloGWT application. 
			You can attach a Web Toolkit module to any HTML page you like, 
			making it easy to add bits of AJAX functionality to existing pages 
			without starting from scratch.
		</p>
 
		<table align=center>
			<tr>
				<td id="slot1"></td><td id="slot2"></td><td id="slot3"></td>
			</tr>
		</table>
	</body>
</html>

Lili.java

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package com.mafanta.test.client;
 
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
 
/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class Lili implements EntryPoint {
	  /**
           * This is the entry point method.
           */
	  public void onModuleLoad() {
	    final Button button = new Button("Click me");
	    final Label label = new Label();
 
	    button.addClickHandler(new ClickHandler() {
	      public void onClick(ClickEvent event) {
	        if (label.getText().equals(""))
	          label.setText("Hello World!");
	        else
	          label.setText("");
	      }
	    });
 
	    // Assume that the host HTML has elements defined whose
	    // IDs are "slot1", "slot2".  In a real app, you probably would not want
	    // to hard-code IDs.  Instead, you could, for example, search for all 
	    // elements with a particular CSS class and replace them with widgets.
	    //
	    RootPanel.get("slot1").add(button);
	    RootPanel.get("slot2").add(label);
	    RootPanel.get("slot3").add(label);
	  }
}

Lili.gwt.xml

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<?xml version="1.0" encoding="UTF-8"?>
<module>
  <!-- Inherit the core Web Toolkit stuff.                        -->
  <inherits name='com.google.gwt.user.User'/>
 
 
  <!-- Specify the app entry point class.                         -->
  <entry-point class='com.mafanta.test.client.Lili'/>
 
 
</module>