Thanks for the reply Pavan,
I have already tried this but still getting the error.
I tried :
long zOid = (long) lr2.fieldGetter(resultObject, "super.lnkMatrix.lnkZeile.smonitor.model.listenverwaltung.MatrixZeile.zeilenOid");
but gets the error :
Error: System.err: java.lang.NoSuchFieldException:smonitor Error
System.err: at lrapi.lr2.fieldGetter(lr2.java:63) Error
The problem is it is not recognizing zeilenOid itself or for that matter the class "smonitor.model.listenverwaltung.MatrixZeile"
I will try the other option of using "lr_xml_get_values" which you have suggested and let you know the result , but actually here client want to use those 2 functions