BigDecimal’s double can lose precision in surprising ways.
// these are the same:
new BigDecimal(0.1)
new BigDecimal("0.1000000000000000055511151231257827021181583404541015625")
Prefer the BigDecimal.valueOf(double) method or the new BigDecimal(String)
constructor.
NOTE BigDecimal.valueOf(double) does not suffer from the same problem; it is
equivalent to new BigDecimal(Double.valueOf(double)), and while 0.1 is not
exactly representable, Double.valueOf(0.1) yields "0.1". As long as
FloatingPointLiteralPrecision doesn’t
generate a warning, BigDecimal.valueOf is safe.
Suppress false positives by adding the suppression annotation @SuppressWarnings("BigDecimalLiteralDouble") to the enclosing element.