Getting javax.validation.NoProviderFoundException exception even after adding the dependencies

To resolve the javax.validation.NoProviderFoundException exception, follow these steps:

1. Remove Conflicting Dependencies:

• Remove any unnecessary validation libraries such as Hibernate Validator and GlassFish Validation from your pom.xml. Keep only the javax.validation dependency. Your dependency should look like this:

   <dependency>
       <groupId>javax.validation</groupId>
       <artifactId>validation-api</artifactId>
       <version>2.0.1.Final</version> <!-- or the latest version -->
   </dependency>

2. Add a Validation Provider:

• Ensure you have a validation provider in your dependencies. For example, if you are using Hibernate Validator, add it as follows:

   <dependency>
       <groupId>org.hibernate.validator</groupId>
       <artifactId>hibernate-validator</artifactId>
       <version>6.2.0.Final</version> <!-- or the latest version -->
   </dependency>

3. Clean Your Project:

• In your IDE, clean your project to remove any cached or compiled files. In IntelliJ IDEA, you can do this by going to Build -> Clean Project.

3. Run Maven Build:

• Execute a Maven build to ensure that all dependencies are correctly resolved. You can do this by navigating to Project -> Run As -> Maven Build and then selecting clean install.

3. Update Maven Project:

• After the build, update your Maven project to ensure that all dependencies are synchronized. In IntelliJ IDEA, go to Project -> Maven -> Update Project.

3. Check for Configuration Issues:

• Ensure that your persistence.xml or other configuration files are correctly set up to recognize the validation provider.

By following these steps, you should be able to resolve the javax.validation.NoProviderFoundException and ensure that your project correctly uses the validation API. If the issue persists, double-check your dependency versions and ensure there are no conflicting libraries in your classpath.