Help using ZTL - Jboss - zAu.send Error

	<client><![CDATA[
			username.set("value", "laranjeiro");
			click(login);
		]]></client>

com.thoughtworks.selenium.SeleniumException: ERROR: Threw an exception: zAu is not defined
	at com.thoughtworks.selenium.HttpCommandProcessor.throwAssertionFailureExceptionOrError(HttpCommandProcessor.java:97)
	at com.thoughtworks.selenium.HttpCommandProcessor.doCommand(HttpCommandProcessor.java:91)
	at com.thoughtworks.selenium.HttpCommandProcessor.getString(HttpCommandProcessor.java:262)
	at com.thoughtworks.selenium.DefaultSelenium.getEval(DefaultSelenium.java:443)
	at org.zkoss.ztl.ZKTestCase.getEval(ZKTestCase.java:546)
	at org.zkoss.ztl.ZKClientTestCase.runZscript(ZKClientTestCase.java:75)
	at loginTest.testztl(loginTest.java:108)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at junit.framework.TestCase.runTest(TestCase.java:168)
	at junit.framework.TestCase.runBare(TestCase.java:134)
	at org.zkoss.ztl.ZKSeleneseTestCase.runBare(ZKSeleneseTestCase.java:292)
	at junit.framework.TestResult$1.protect(TestResult.java:110)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.framework.TestResult.run(TestResult.java:113)
	at junit.framework.TestCase.run(TestCase.java:124)
	at junit.framework.TestSuite.runTest(TestSuite.java:243)
	at junit.framework.TestSuite.run(TestSuite.java:238)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

<!-- index.ztl.java

	Purpose:for testing index.ztl .

	Description:

	History:
		11, 21, 2011 10:42:10

Copyright (C) 2011 Potix Corporation. All Rights Reserved.

This program is distributed under Apache License Version 2.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
-->
<test tags="index.zul">
	<case id="ztl">
		<server><!--
			<?page title="Auto Generated index.zul"?>
<window>
	<textbox id="name" value="Jerry" width="150px" />
	<button id="btn" label="Left" width="125px" onClick='mailPop.open(self)' />
	<popup id="mailPop" width="150px">
        <groupbox sclass="z-demo-config" closable="false" >
            <caption>This is Popup</caption>	  
        </groupbox>
    </popup>
    <textbox value="Kramer" width="150px" />
    <textbox value="Elaine" width="150px" />
    
</window>

		--></server>
		<client><![CDATA[
			click(btn);
		]]></client>
	</case>
</test>

/* indexTest.java

	Purpose:
		
	Description:
		
	History:
		Nov, 21, 2011 10:43:20 AM

Copyright (C) 2011 Potix Corporation. All Rights Reserved.

This program is distributed under Apache License Version 2.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
*/
import org.junit.Test;
import org.zkoss.ztl.Element;
import org.zkoss.ztl.JQuery;
import org.zkoss.ztl.Tags;
import org.zkoss.ztl.Widget;
import org.zkoss.ztl.ZK;
import org.zkoss.ztl.ZKClientTestCase;
import org.zkoss.ztl.util.ColorVerifingHelper;

import com.thoughtworks.selenium.Selenium;

@Tags(tags = "index.zul")
public class indexTest extends ZKClientTestCase {
	
	public indexTest() {
		target = "http://localhost:8080/ZKTest/index.zul";
		browsers = getBrowsers("all", false);
		_timeout = 60000;
		caseID = getClass().getSimpleName();
	}
	
	@Test(expected = AssertionError.class)
	public void testztl() {
		for (Selenium browser : browsers) {
			try {
				start(browser);
				windowFocus();
				windowMaximize();
				String zscript = "";
				Widget engine = new Widget(new StringBuffer("zk.Desktop._dt"));
				
				// remove all of unnecessary children
				if (target.endsWith("/service.zul"))
					removeChildren(engine.firstChild());
					
				/** start **/
				/** server code **/
				zscript = ""
					+ "			<?page title=\"Auto Generated index.zul\"?>"
					+ "<window>"
					+ "	<textbox id=\"name\" value=\"Jerry\" width=\"150px\" />"
					+ "	<button id=\"btn\" label=\"Left\" width=\"125px\" onClick=\\'mailPop.open(self)\\' />"
					+ "	<popup id=\"mailPop\" width=\"150px\">"
					+ "        <groupbox sclass=\"z-demo-config\" closable=\"false\" >"
					+ "            <caption>This is Popup</caption>	  "
					+ "        </groupbox>"
					+ "    </popup>"
					+ "    <textbox value=\"Kramer\" width=\"150px\" />"
					+ "    <textbox value=\"Elaine\" width=\"150px\" />"
					+ "     "
					+ "</window>"
					+ " 		"
					;
				runZscript(zscript);
						Widget name = engine.$f("name");
				Widget btn = engine.$f("btn");
				Widget mailPop = engine.$f("mailPop");
				waitResponse();
				/** client code **/
				
				click(btn);
				
				/** end **/
			} finally {
				stop();	
			}
		}
	}
}