Pattern: Unnecessary BigDecimal instantiation
Issue: -
It is unnecessary to instantiate BigDecimal objects. Instead just use the decimal literal or the G identifier to force the type, such as 123.45 or 123.45G.
This rule does not produce violations when the parameter evaluates to an integer/long, e.g. new BigDecimal(42), new BigDecimal(42L) or new BigDecimal("42"), because using the "G" suffix on an integer value produces a BigInteger, rather than a BigDecimal, e.g. 45G. So that means there is no way to produce a BigDecimal with exactly that value using a literal.
This rule also does not produce violations when the parameter is a double, e.g. new BigDecimal(12.3).