private ComboBoxCompositeEditorStrategy getStrategy(F focusableComponent) {
    ComboBoxCompositeEditorStrategy strategy = null;
    if (focusableComponent instanceof JTextField) {
      strategy = jTextFieldStrategy;
    }
    else if (focusableComponent instanceof EditorTextField) {
      strategy = editorTextFieldStrategy;
    }
    else if (focusableComponent instanceof JLabel) {
      strategy = jLabelStrategy;
    }
    return strategy;
  }
private ComboBoxCompositeEditorStrategy getStrategy(F focusableComponent)