You could use GenOpt or JEPlus+EA for optimisation purposes. There are other optimisation libraries (e.g. jMetal for Java programmers) as well but you have to do bit of coding for them.

You could use GenOpt Genopt (https://simulationresearch.lbl.gov/GO/) or JEPlus+EA JEPlus+EA (http://www.jeplus.org/wiki/doku.php?id=docs:jeplus_ea:start) for optimisation purposes. There are other optimisation libraries (e.g. jMetal for Java programmers) as well but you have do bit of coding for them.