Web Services (JAX-WS) in Java EE 5 Error

When i tried deploy this web service in my end.

http://www.netbeans.org/kb/55/websvc-jax-ws.html

I am getting this error.

D:\NetBeans\CalculatorWSApplication\nbproject\build-impl.xml:453: Deployment error:

null

See the server logfor details.

BUILD FAILED (total time: 0 seconds)

Under my Netbeans 5.5 IDE.

My web server SJSAS 9.

what is the reason for the error.

package org.me.calculator;

import javax.jws.WebMethod;

import javax.jws.WebParam;

import javax.jws.WebService;

@WebService()

publicclass CalculatorWS

{

@WebMethod

publicint add(@WebParam(name ="i")int i, @WebParam(name ="j")int j)

{

int k = i + j;

return k;

}

}

[1401 byte] By [Ajaxranda] at [2007-11-27 5:53:00]