Groovy is a heavily marketed programming language that uses BigDecimal, just like its sister dynamic languages Clojure, Rhino/Nashorn, and Xtend also do. Only Java actually ships BigDecimal.
Yeah, I get that the base JRE is what actually provides the BigDecimal class in this case -- the other languages just use it. (as the default "decimal"-numeric type in the case of Groovy, rather than [Dd]ouble)
