Can't get unparsed (XML string) BPEL response in servlet

Question

(Reposted from "OC4J and Java EE" forum)
I'm trying to invoke a two-way BPEL process from within a servlet like so:
        NormalizedMessage requestMessage = new NormalizedMessage();
        requestMessage.addPart("payload", requestXml);
        Locator lctr = new Locator(domainId, password);
        IDeliveryService dService = (IDeliveryService) lctr.lookupService(IDeliveryService.SERVICE_NAME);
        NormalizedMessage responseMessage = dService.request(bpelId, operationId, requestMessage);I would like to retrieve the unparsed XML String response. I thought that would be possible using the following:
        String responsePayload = responseMessage.getPayloadString();but that returns null. responseMessage.getPayload() returns a Map from which I can successfully obtain the payload XMLElement, so the BPEL process is definitely working.
Any ideas why getPayloadString is not working as I expect it to? SOA suite is version 10.1.3.1. Thanks!

Answer 1

hmm, if you poke around in decomiled version of DeliveryBean and NormalizedMessage, you can see that NormalizedMessage mPayloadString is not set by anybody, may be that is the cause.
Probably you can write your own function:
e.g. something like:
NonSyncStringBuffer buf = new NonSyncStringBuffer();
Iterator it = mPayload.keySet().iterator();
buf.append("<part>");
int i = 0;
for(int size = mPayload.size(); size > 0;)
String key = (String)it.next();
if(i > 0)
buf.append(", ");
buf.append(key).append('=').append(mPayload.get(key));
size--;
i++;
buf.append('</>');
return buf.toString();