Java How to estimate how much memory method needs, reflectively from JAR file [duplicate]

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• Java unit testing: how to measure memory footprint for method call 4 answers

I need to estimate how much memory method needs for execution. I load refletively classes from JAR file and then take specific method from class. But I don't know how to estimate this. Is there any way to do this ?

Extra I need estimate how much stack and heap memory method needs for execution.