ChildFactory<?> kids = new AllJSFiles( getProjectDirectory() );
Children ch = Children.create( kids, true );
Node root = new AbstractNode( ch );
mgr.setRootContext( root );
final SwingValidationGroup grp = SwingValidationGroup.create();
ValidationPanel pnl = new ValidationPanel( grp );
pnl.setInnerComponent( ep );
class X extends ValidationListener<Void> implements PropertyChangeListener {
X () {
super( Void.class, ValidationUI.NO_OP, null );
}