This function exposes the value of worldSize, so it is a form of representation exposure:

/**
 * Returns the size of the simulation world.
 * Used for documentation ONLY
 * Should not have representation exposure
 *
 * @return The size of the simulation world.
 */
public int getWorldSize() 
{
    int clone = this.worldSize;
    return clone;
}

I have multiple of these functions in a project, and am only using them for documentation. I am wondering if its possible to obtain the same result without exposing the values of the integers directly.

I have used .clone() or Arrays.copyOf() in the past, but both of those are not for int type functions.