question: call immediately after decode , from the same thread . the result is undefined while decode is running . concode_field_sep Reader reader concode_elem_sep List<ResultPoint> possibleResultPoints concode_field_sep BinaryBitmap toBitmap concode_elem_sep Reader getReader concode_elem_sep void foundPossibleResultPoint concode_elem_sep Result decode concode_elem_sep Result decode
target: List < ResultPoint > function ( ) { return new ArrayList < > ( possibleResultPoints ) ; }