Error: empty variable/expression result

Question

Hi ,
I am following the examples and initiating a bpel process(not the process given in the examples) through java. But when I execute the java code, I get the following error:
com.oracle.bpel.client.BPELFault: faultName: {{http://schemas.
xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {null}
parts: {{summary=<summary>empty variable/expression result.
xpath variable/expression expression "/client:helloProcessRequest/client:name" i
s empty at line 30, when attempting reading/copying it.
Please make sure the variable/expression result "/client:helloProcessRequest/cli
ent:name" is not empty.
</summary>}}
com.oracle.bpel.client.delivery.ReceiveTimeOutException: Waiting for response has timed out. The conversation id is null. Please check the process instance for detail.
I am sending the variable in the string with the following code:
String xml = "<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><SOAP-ENV:Body><m:helloProcessRequest xmlns:m=\"http://xmlns.oracle.com/hello\"><m:name>revanth</m:name></m:helloProcessRequest></SOAP-ENV:Body></SOAP-ENV:Envelope>";
Locator locator = new Locator("default","bpel",props);
IDeliveryService deliveryService = (IDeliveryService)locator.lookupService(IDeliveryService.SERVICE_NAME );
// construct the normalized message and send to collaxa server
NormalizedMessage nm = new NormalizedMessage( );
nm.addPart("payload", xml );
NormalizedMessage res = deliveryService.request("hello", "process", nm);
Map payload = res.getPayload();
Can anybody please tell me what is missing here?
Appreciate your help.
Thank you,
Revanth

Answer 1

Got it. Was sending the wrong string. Needed to send only the varaible and not the soap envelope. just for information, i had to send this string:
String xml = "<m:helloProcessRequest xmlns:m=\"http://xmlns.oracle.com/hello\"><m:name>revanth</m:name></m:helloProcessRequest>";
Sorry for any trouble.
Rev