Importing Custom Classes

This may be a silly beginner question, but how do I access functions after 
importing a custom class?  When I compile I receive 'undefined method' 
errors. Ideally I would like to clean up my code and make it more reusable.
Robowiki and repository are down, so my options to learn are pretty limited.


myUtils.java (compiles)
package mo;
import robocode.*;

public class myUtils extends AdvancedRobot{
 public void spin() {
setTurnRight(10000);
}
}

myBot.java (doesnt compile)
package mo;
import robocode.*;
import mo.myUtils;
import java.awt.Color;

public class myBot {

public void run() {
 while(true) {
spin();
}
 } 
}

Compile Error:
Compiling...
----------
1. ERROR in D:\MyFiles\Games\RoboCode\robots\mo\MyBot2.java (at line 11)
spin();
^^^^
The method spin() is undefined for the type MyBot2
----------
1 problem (1 error)
Compile Failed (-1)




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