[jboss-user] [JBoss jBPM] - jBPM BPEL- accessing a business process from java client

[shefagarwal]

Hi,

I have created a simple BPEL process (similar to hello example of jBPM BPEL package) with receive-assign-reply activities.
The process has been successfully deployed on JBOSS 4.0.5.GA But when I try to access this process through my java client program, it throws some exceptions:
The client program is as follows:
public class WsClient 
{
	 private static String invokeWS() throws Exception
	  {
	    Service service;
	    String namespace = "http://eclipse.org/bpel/sample";
	    URL url = new URL("http://ddc1a-01-378:8080/bank/helloProvider?wsdl");
	    QName qname = new QName(namespace, "helloService");
	    ServiceFactory factory = ServiceFactory.newInstance();
	    service = factory.createService(url, qname);
	    QName operation = new QName(namespace, "process");
	    QName port = new QName(namespace, "helloProviderPort");
	    Call call = service.createCall(port, operation);
	    return (String) call.invoke(new Object[] { "Shefali" } );
	  }

	public static void main(String[] args) 
	{
		try {
		      System.out.println("Invoke: " + invokeWS() );
		    } catch (Exception e) {
	      e.printStackTrace();
		    }
	}

The runtime exception I faced:
the serializer/deserializer for parameter number: 0, named: "{http://eclipse.org/bpel/sample}helloResponse", type: "{http://eclipse.org/bpel/sample}helloResponse", is ambiguous because its class could not be determined at com.sun.xml.rpc.client.dii.BasicCall.serializerNotFoundException(BasicCall.java:779) at com.sun.xml.rpc.client.dii.BasicCall.createLiteralResponseSerializer(BasicCall.java:722) at com.sun.xml.rpc.client.dii.BasicCall.getResponseDeserializer(BasicCall.java:692) at com.sun.xml.rpc.client.dii.BasicCall.invoke(BasicCall.java:480) at com.test.WsClient.invokeWS(WsClient.java:32) at com.test.WsClient.main(WsClient.java:38)

Can somebody provide a possible solution to this problem?

Thanks in advance
Shefali.

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