[rules-users] error importing java built in api's inside functions

Hi, Inside a function I am trying to import java api i.e. java.math.* so that I can use in built math function to perform certain calculations but it does not recognize and validate it. I also tried to import the rt jar file(through "new file" option in drools 5.1 ) but the package does not get built and gives import error. It seems it is not able to recognize the jar. Is there any way by which I can use the java api or start importing the api jars into package(I don't want to use it as fact. Hence I am not using "upload pojo model jar" option). Best Regards, Kripa ________________________________ This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ______________________________________________________________________