A DESCRIPTION OF THE PROBLEM :
In the ResponseAPDU class, the getData() method's javadoc in it's current state is written as:
 * Returns a copy of the data bytes in the response body. If this APDU as
 * no body, this method returns a byte array with a length of zero.

I believe what this is trying to say is changing the 'as' in the first line to 'has' like this:
 * Returns a copy of the data bytes in the response body. If this APDU has
 * no body, this method returns a byte array with a length of zero.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
just look at the javadoc of that class, you'll see it

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
has instead of as
ACTUAL -
as instead of has

FREQUENCY : always