How to define xstring in java?

Hello,

I have a question for the JCo library:

I would like to use the Jco to execute a rfc-programm in SAP BW to write data directly into an DSO.

Therefore I got a small programm where I try to trigger "RSDRI_ODSO_INSERT_RFC" from SAP BW.

To submit data it uses an xstring as parameter.

Now I'm not sure how to define the xstring parameter in Java. If I read it right, the xstring is an byte sequence. Is this right?

So can I use a simple byte array in java for the parameter? Does anyone have a simple example how I can give some data as paramter to an xstring parameter in java, so that the ABAP application server will work with it?

Thanks in advance.

Best Regards

Stefan