Set Attribute in HttpServletRequest not working!!

<zk>
	<window apply="RequestParams">
		<textbox id="textBox1"></textbox>
		<button label="Submit" id="submit1"></button>
	</window>
</zk>

<zk>
	<zscript><![CDATA[
	import javax.servlet.http.HttpServletRequest; 
	HttpServletRequest request = (HttpServletRequest) Executions.getCurrent().getNativeRequest();
	String testValue = (String) request.getAttribute("test");
	]]></zscript>
	
	<window>
		<label value="${testValue }"></label>
	</window>
</zk>

public class RequestParams extends SelectorComposer {

	@Wire
	Textbox textBox1;
	
	@Listen("onClick = button#submit1")
	public void submitClick() throws IOException {
		System.out.println("In Submit " + textBox1.getText());
		//Executions.getCurrent().getSession().setAttribute("test", textBox1.getText());
		HttpServletRequest request = (HttpServletRequest) Executions.getCurrent().getNativeRequest();
		request.setAttribute("test", textBox1.getText());
		Executions.sendRedirect("page2.zul");
	}
}