Incorrect results from BinomialConfidenceInterval#getWilsonScoreInterval

It looks like BinomialConfidenceInterval#getWilsonScoreInterval produces not accurate results for interval lower bound.
E.g. for input (10,9,0.95) it returns 0.818 instead of 0.596;
for input (10,10,0.95) it returns 0.856 instead of 0.722.

Used also http://epitools.ausvet.com.au/content.php?page=CIProportion&SampleSize=10&Positive=9&Conf=0.95&Digits=3 and http://www.measuringusability.com/wald.htm to verify it.