Java Programming

Hi,

I have a question which is not entirely related to Java. But although its related HTTP calls, so I thought I might get some ideas here.

Background:
I am making HTTP URL call from SAP ABAP code. Its pretty much similar to Java (creating URL connection, setting HTTP headers, connecting, receiving response and everything)
For example,
http://service_server:8080/a7/extension.services.SearchRequirements.a7x?RequestStatus=CR&RequestStatus=RR
Now, this service_server runs a query to database where it uses both these values of "RequestStatus" to form 'OR' condition for a field.

Issue:
When I run this URL from browser, it shows XML response containing results for both values. In short, this is the ideal response.
(I am using getParameterValues(string) at service_server to read multiple values for same parameter)

But when I see response in SAP system, I see that it is returning data for only one value of 'RequestStatus'.
I checked the logs of service_server, and I see that it has received only one parameter, not two.

Question:
It seems like SAP systems web server is truncating both parameters with same name and passing just one of them to outside server(??)
Is there any configuration at Web Server side or any HTTP headers to be set so as to avoid this?

Can anybody suggest something on this?