In Java Please!!

I am getting an error in my code where it tests my remove function and it fails.

Here is what is required for that method to do:

Remove saves a reference to the item at givenPosition before copying all elements above givenPosition to the left one cell, and then returns the reference to the removed item. This method will need to write a loop in remove that copies the appropriate items left one cell.

Here is what I currently have:

public T remove(int givenPosition) { ensureCapacity(); //T result = null; if((givenPosition >= 1) && (givenPosition

Here is the error message I am getting:

Test feedback remove (int) failed unit test with unspecified input