question: public static byte [ ] unPad ( byte [ ] seq , boolean forward ) { if ( seq != null && seq . length == CG2_PADDED_LENGTH ) { final int pos = forward ? CG2_PAD_POSITION : CG2_PAD_POSITION_REV ; final byte [ ] result = new byte [ seq . length - 1 ] ; System . arraycopy ( seq , 0 , result , 0 , pos ) ; System . arraycopy ( seq , pos + 1 , result , pos , seq . length - pos - 1 ) ; return result ; } else { return seq ; } }
target:  Strip single padding base that Complete Genomics v2 reads contain, if present.