Java Question I get ERROR while making xml file for small test LIBRARY

I tried to make basic B4A Library Following the Video Tutorial in how to create a library with following small java code as a test which suppose to give the result of multiplying two numbers , i created the jar file for the class as test.jar, But when i tried to create the XML file "generate java doc" i always get AN ERROR. , i am using Eril's custom Doclet and have this string as a PATH:
-b4atarget"D:\BADOCLET\test.xml"

this is the java code for small java class:

package com.tst1.tst1;
import anywheresoftware.b4a.BA.ShortName;

@ShortName("test")
public class test {

public int multiply(int x) {
return x*3;
}
}



The ERROR I GET IS THIS :

javadoc: error - No packages or classes specified.


I tried to follow the video step by step but i keep getting the ERROR ,why am i getting this error?

i am not good at java specially for android i mean programming android using ecilpse for android is complicated not eclipse but android java is, but with Basic4Android its much easier,

Any Help will be Appreciated.

Make sure that the source file is checked: