Java - get caller locals [duplicate]

This question already has an answer here:

• Java: how to get arguments passed to method that called this method? 5 answers

So, this is my problem: I'm making a plugin for another Java application. In my plugin I have this:

public class FooExtended extends Foo
{
    @Override
    public int doSomeWork(int useful, boolean notSoMuch)
    {
        // vital parameter missing...
    }
}

Now, the problem is that in the doSomeWork(), I need another parameter, vital. But this parameter is not passed to me, and FooExtended is a singleton and doSomeWork() is called over and over again for different values of vital. But, this parameter is passed to a method two calls "above" doSomeWork(), passed to some other methods, but not to me.

Is there a way to get locals of the callers? And also, that is the only call of doSomeWork(), so the line two callers above is unique (no need to worry about reflection not found issues)