Something

public class JavaPbOScanner extends PBOScanner {

	private final ColorManager man;
	public JavaPbOScanner(ColorManager man)
	{
		if (man == null)
		{
			throw new NullPointerException();
		}
		
		this.man = man;
	}
	@Override
	public synchronized Color getColor(RGB g) {

		return man.getColor(g);
	}

}