We have written web service in Java 1.6 using JAX-WS. We need to call the methods from this web service using PHP Nusoap library.

In Java 1.6; we use Endpoint.publish method to publish the web service. Hence we dont require any container(so we are using Java1.6 which internally supports HTTP server) .

The PHP client code can parse the WSDL generated by Java code but when a method is called PHP client receives Null Pointer exception (fault).

Please help me in solving this problem.

Java Code:
package example;
import javax.jws.WebService;
import javax.jws.WebService;
import javax.xml.ws.Endpoint;
import java.util.*;

@WebService
public class Calculator {

public void add() {
int a=10;
//System.out.println("Add Method call");
//return a+b;
}

public static void main(String[] args){
// create and publish an endpoint
Calculator calculator = new Calculator();
Endpoint endpoint = Endpoint.publish("http://localhost:9999/calculator", calculator);
}
}


PHP code:

<?php
error_reporting(E_ERROR | E_WARNING | E_PARSE);

// Pull in the NuSOAP code
require_once('lib/nusoap.php');

$client = new soapclient('http://localhost:9999/calculator?wsdl', true);
// Check for an error
$err = $client->getError();
if ($err) {
// Display the error
echo '<h2>Constructor error</h2><pre>' . $err . '</pre>';
// At this point, you know the call that follows will fail
}
// Call the SOAP method

$result = $client->call('add');

if ($client->fault) {
echo '<h2>Fault</h2><pre>';
print_r($result);
echo '</pre>';
} else {
// Check for errors
$err = $client->getError();
if ($err) {
// Display the error
echo '<h2>Error</h2><pre>' . $err . '</pre>';
} else {
// Display the result
echo '<h2>Result</h2><pre>';
print_r($result);
echo '</pre>';
}
}
// Display the request and response
echo '<h2>Request</h2>';
echo '<pre>' . htmlspecialchars($client->request, ENT_QUOTES) . '</pre>';
echo '<h2>Response</h2>';
echo '<pre>' . htmlspecialchars($client->response, ENT_QUOTES) . '</pre>';
// Display the debug messages
echo '<h2>Debug</h2>';
echo '<pre>' . htmlspecialchars($client->debug_str, ENT_QUOTES) . '</pre>';
?>