WSDL error WSWS3328E: Error: The class extends non-bean class

[murali jackson]

Hi All,

I am trying to learn web services, I have written a basic webservice in IBM RAD with WAS 6.1.
Basically it will get two integers and returns the output to the client. It worked as expected.
But later I tried to return object of my class as a return type to client . But when i do this i get an error when trying to generate WSDL with below error.
Please throw some light on it.

IWAB0638E Error in generating WSDL file from Java
  WSWS3328E: Error: The class com.service.calc.CalculatorService extends non-bean class com.service.calc.CalculatorService.  An xml schema anyType will be used to define com.service.calc.CalculatorService in the wsdl file.

I have attached the RAD screenshot also ..
RAD Error

Below is the Webservice class file which I have created.

package com.service.calc;

import javax.jws.WebService;

@WebService
public class CalculatorService { 
	
	private int i;
	
	



	public CalculatorService calculate (int a, int b){

		CalculatorService calcObj = new CalculatorService();
		
		int result = a*b;
		
		calcObj.setI(result);
		
		return calcObj;
		
		
		
		
	}




	public int getI() {
		return i;
	}




	public void setI(int i) {
		this.i = i;
	}



}