GDA-6038 Replace calls to getattr(String name, Object data, int args[]) 

with getattr(String name).
libjnexus reports error due to check napi5.c:NX5getattr that the 
rank of the data is 0. In the error case the rank is 1.

The check on the rank has been added in commit 47392853 by Tobias.
GDA-6038 String attributes are now read as String []