Time for action – combining Spring and bean validations

You need to write the previous bean validations again in a classic Spring-based validation, which is not a good idea, but thanks to the flexibility and extensibility of Spring validation, you can combine both a Spring-based validation and bean validation together with a little extra code. Perform the following steps:

1. Create a class called ProductValidator under the com.packt.webstore.validator package in the source folder src/main/java. Then, add the following code into it:

   package com.packt.webstore.validator;
   
   import java.util.HashSet;
   import java.util.Set;
   import javax.validation.ConstraintViolation;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.validation.Errors;
   import org.springframework.validation.Validator;
   import com.packt.webstore.domain.Product;
   
   public class ProductValidator implements Validator{
   
     @Autowired
     private javax.validation.Validator beanValidator;
   
     private Set&lt...