Window.destroy() - Method of IWDWindow is deprecated.

Hi Experts,
I am getting following message inside a Java program of Web Dynpro:
window.destroy() - Method of IWDWindow is deprecated.
Could you please let me know how to sort out the issue. I am using NWDS 7.0.06.
Regards,
S

According to <a href="https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/services/session/api/IWDWindow.html#destroy()">JavaDoc</a> :
<i>
Deprecated. This method is not part of the Web Dynpro API and might be withdrawn with the first new NetWeaver release in 2007. Please use <a href="https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/services/session/api/IWDWindow.html#destroyInstance()">destroyInstance()</a> instead
Method destroy: invalidates/destroys window instance - the instance is closed and destroyed and can not be reused/reopened
</i>

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import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.*;
import javax.servlet.http.*;
public class Servlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=windows-1252";
public void init(ServletConfig config) throws ServletException {
super.init(config);
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