Using of CompontnLocator and ComponentFactory

I need add search ability to custom cascading-select field.

import com.atlassian.jira.issue.customfields.searchers.CascadingSelectSearcher;
import com.atlassian.jira.util.ComponentFactory;
import com.atlassian.jira.util.ComponentLocator;
public class SearcherSelectField extends CascadingSelectSearcher {

    public SearcherSelectField(ComponentLocator componentLocator,
                               ComponentFactory componentFactory) {
        super(componentLocator, componentFactory);

But it crashes on Null values of componentLocator and factory. How to porperly inject them with atlassian springscanner 1.2.13?
Thank in advice.