Spring Boot Vaadin Validation does not work - Why? - spring-boot

Question

I'm using Vaadin 14 with Vaadin CRUD AddOns and it seems that my validation does not work for me.
If I open my CRUD view and look at these two fields. They are empty strings e.g null. I'm suppose to recieve an error "must not be null". But here, I get no error at all.
My entity looks like this.
#Entity(name = "Data")
#Data
public class Data {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
#NotNull
private String OrderNumber;
#NotNull
private String SerialNumber;
And if I trying to save to my database, it looks like this.
Caused by: javax.validation.ConstraintViolationException: Validation failed for classes [se.danielmartensson.entities.LX_Data] during update time for groups [javax.validation.groups.Default, ]
List of constraint violations:[
ConstraintViolationImpl{interpolatedMessage='must not be null', propertyPath=SerialNumber, rootBeanClass=class se.danielmartensson.entities.Data, messageTemplate='{javax.validation.constraints.NotNull.message}'}
ConstraintViolationImpl{interpolatedMessage='must not be null', propertyPath=OrderNumber, rootBeanClass=class se.danielmartensson.entities.Data, messageTemplate='{javax.validation.constraints.NotNull.message}'}
]
That is weird because my pom.xml has Spring Boot Starter Validation included. Something Vaadin him self says it should be included: https://vaadin.com/learn/tutorials/introduction-to-java-bean-validation
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.application</groupId>
<artifactId>test-data</artifactId>
<name>Project base for Spring Boot and Vaadin Flow</name>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<java.version>11</java.version>
<vaadin.version>14.5.2</vaadin.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.4</version>
</parent>
<repositories>
<!-- The order of definitions matters. Explicitly defining central here to make sure it has the highest priority. -->
<!-- Main Maven repository -->
<repository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<!-- Repository used by many Vaadin add-ons -->
<repository>
<id>Vaadin Directory</id>
<url>https://maven.vaadin.com/vaadin-addons</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<!-- Main Maven repository -->
<pluginRepository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<!-- Replace artifactId with vaadin-core to use only free components -->
<artifactId>vaadin</artifactId>
<exclusions>
<!-- Webjars are only needed when running in Vaadin 13 compatibility mode -->
<exclusion>
<groupId>com.vaadin.webjar</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.insites</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymer</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymerelements</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.vaadin</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.webcomponents</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
<exclusions>
<!-- Excluding so that webjars are not included. -->
<exclusion>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.vaadin.artur</groupId>
<artifactId>a-vaadin-helper</artifactId>
<version>1.6.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<!-- Spring Security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<!-- FTP Client -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.8.0</version>
</dependency>
<!-- Getter & Setter -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- Data base -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
</dependency> -->
<!-- CRUD -->
<dependency>
<groupId>org.vaadin.crudui</groupId>
<artifactId>crudui</artifactId>
<version>4.3.2</version>
</dependency>
<!-- Charts -->
<dependency>
<groupId>com.github.appreciated</groupId>
<artifactId>apexcharts</artifactId>
<version>2.0.0.beta11</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-testbench</artifactId>
<scope>test</scope>
</dependency>
<!-- Include JUnit 4 support for TestBench and others -->
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.github.bonigarcia</groupId>
<artifactId>webdrivermanager</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>spring-boot:run</defaultGoal>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!-- Clean build and startup time for Vaadin apps sometimes may exceed
the default Spring Boot's 30sec timeout. -->
<configuration>
<wait>500</wait>
<maxAttempts>240</maxAttempts>
</configuration>
</plugin>
<!--
Take care of synchronizing java dependencies and imports in
package.json and main.js files.
It also creates webpack.config.js if not exists yet.
-->
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-frontend</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Production mode is activated using -Pproduction -->
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>build-frontend</goal>
</goals>
<phase>compile</phase>
</execution>
</executions>
<configuration>
<productionMode>true</productionMode>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>it</id>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<id>start-spring-boot</id>
<phase>pre-integration-test</phase>
<goals>
<goal>start</goal>
</goals>
</execution>
<execution>
<id>stop-spring-boot</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Runs the integration tests (*IT) after the server is started -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
<configuration>
<trimStackTrace>false</trimStackTrace>
<enableAssertions>true</enableAssertions>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
I'm expecting a behaviour like this.
Please, see this web application and try to change the CRUD by pressing at the pen above. Try to update with a clean text field.
https://alejandro.app.fi/crud-ui-demo/simple
And his Entity looks like this.
/**
* #author Alejandro Duarte
*/
#Entity
public class User {
#NotNull
#Id
#GeneratedValue
private Long id;
#NotNull
private String name;
https://github.com/alejandro-du/crudui/blob/master/demo/src/main/java/org/vaadin/crudui/demo/entity/User.java
And yes, I'm using
crud.getCrudFormFactory().setUseBeanValidation(true);
Here:
// Configuration of the grid
GridCrud<Data> crud = new GridCrud<>(Data.class);
crud.getGrid().setColumns("orderNumber", "serialNumber");
crud.getGrid().setColumnReorderingAllowed(true);
// Filter
TextField orderNumberFilter = createFilterField("Order Number", crud);
TextField serialNumberFilter = createFilterField("Serial Number", crud);
crud.getCrudLayout().addFilterComponents(orderNumberFilter, serialNumberFilter);
// Configuration of the user interface
crud.getCrudFormFactory().setUseBeanValidation(true);
crud.getCrudFormFactory().setVisibleProperties("orderNumber", "serialNumber");
crud.getCrudFormFactory().setDisabledProperties("id");

Answer 1

It seems that based on your setters and getters, it finds the orderNumber and serialNumber properties.
However, you name your fields OrderNumber and SerialNumber, which is not the standard naming convention. Because of this, it does not make the connection between those annotations and properties.
You can do one of two things:
Rename your fields to orderNumber and serialNumber.
Move the annotations to the getter methods. It looks like you're using Lombok, so you'd have to define those getters first, or perhaps using #Getter(onMethod_=#NotNull) on your field.