Pattern: Big decimal instantiation
Issue: -
Checks for calls to the java.math.BigDecimal constructors that take a double value as the first parameter. As described in the BigDecimal javadoc, the results from these constructors can be somewhat unpredictable, and their use is generally not recommended. This is because some numbers, such as 0.1, cannot be represented exactly as a double.
For instance, executing println new BigDecimal(0.1) prints out 0.1000000000000000055511151231257827021181583404541015625.
Here is an example of code that produces a violation:
def b1 = new BigDecimal(0.1) // violation
def b2 = new java.math.BigDecimal(23.45d) // violation