testing different Java dependency?

[Robert Huff]

Hello:
	Java novice here.
	Suppose I have a port - FOO - built and running with openjdk-12.
	I'd like to test it with openjdk-14 _without_ changing the
settings in make.conf.
	Is there an command-line arguement I can feed make that will
cause that to happen?  Assume I have installed openjdk-14.
	(I looked at bsd.java.mk ... my eyes glazed over ... and I backed
carefully out of the room.)


			Respectfully,


				Robert Huff