How to test or call a java method using fitnesse?

My requirement is to test or call a java method directly through fitnesse tool. I have used this tool for REST testing, but never for calling java methods directly. Also googled , but no solution. Any help would be appreciated.

Thanks

I found the answer finally :

To call any method of any Java class, just use Generic Fixture Eg.

Java class :

package com.fitnesse.fixtures;


public class HelloWorld {

    public long getValue()
    {
        return 10;
    }

}

Fitnesse script to call the fore-mentioned java class :

!| Generic Fixture | com.fitnesse.fixtures.HelloWorld|
|myvar=getValue||10|

So first line calls the default constructor of the Java class, and
second line calls the method getValue and saves it in myvar and also validates it with 10.