title: Spring Boot - Validations stopped working after upgrade from 2.2.5 to 2.3.0
body: <p>I've migrated a Spring Boot project from 2.2.5 to 2.3.0 and after that, Validations stopped to work (they aren't invoked at all).</p>
  
  <p>I read in changelog documentation (<a href="https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3.0-M1-Release-Notes" rel="noreferrer">https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3.0-M1-Release-Notes</a>), that <code>spring-boot-starter-validation</code> now needs to be added manually as a dependency.</p>
  
  <p>So, I added it to my pom.xml:</p>
  
  <pre><code>&lt;dependency&gt;
     &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
     &lt;artifactId&gt;spring-boot-starter-validation&lt;/artifactId&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>My pom parent is:</p>
  
  <pre><code>&lt;parent&gt;
      &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
      &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
      &lt;version&gt;2.3.0.RELEASE&lt;/version&gt;
      &lt;relativePath&gt;&lt;/relativePath&gt;
  &lt;/parent&gt;
  </code></pre>
  
  <p>My Controller looks like this:</p>
  
  <pre><code>@PostMapping( value = "/signup", consumes = MediaType.APPLICATION_JSON_VALUE )
  @ResponseStatus( value = HttpStatus.OK )
  public void signUp( @Valid @RequestBody ClientDto clientDto )
  {
      onboardingService.signUp( clientDto );
  }
  </code></pre>
  
  <p>EDIT:</p>
  
  <p>I WAS ABLE TO FOUND THE ISSUE, CHECK MY ANSWER BELOW!</p>
  
  <p>Thanks everybody for the help!</p>