question: public void testBitLengthPositive2 ( ) { byte aBytes [ ] = { - 128 , 56 , 100 , - 2 , - 76 , 89 , 45 , 91 , 3 , - 15 , 35 , 26 } ; int aSign = 1 ; BigInteger aNumber = new BigInteger ( aSign , aBytes ) ; assertEquals ( 96 , aNumber . bitLength ( ) ) ; }
target:  bitLength() of a positive number with the leftmost bit set