VBox contentBox = new VBox();
contentBox.setPadding(new Insets(5.0, 5.0, 5.0, 5.0));
contentBox.getStyleClass().add("form-content-box");
titleBox.getChildren().add(contentBox);
contentBox.setSpacing(5.0);
ConstraintLabel constraintLabel = new ConstraintLabel();
constraintLabel.constraintProperty().bind(fxForm.getClassLevelValidator().constraintViolationsProperty());
gridPane = GridPaneBuilder.create().hgap(5.0).vgap(5.0).build();
contentBox.getChildren().addAll(constraintLabel, gridPane);
return titleBox;
}