Inject CDI is not working with producer in a .jar project

I created an EntityManager producer on a .jar project but it does not work.

I configured POM.XML with the dependency below

<!--  CDI -->   
<dependency>
   <groupId>javax.enterprise</groupId>
    <artifactId>cdi-api</artifactId>
    <version>1.2</version>  
</dependency>

I created an empty beans.xml file in src / main / resources / META-INF

• I created a producer file according to abaix

  import javax.enterprise.inject.Disposes;
  import javax.enterprise.inject.Produces;
  import javax.persistence.EntityManager;
  import javax.persistence.EntityManagerFactory;
  import javax.persistence.EntityTransaction;
  import javax.persistence.Persistence;
  
  public class JpaUtil {
  
      private static final String PERSISTENCE_UNIT = "PEROLAWEB";
  
      private static ThreadLocal<EntityManager> threadEntityManager = new ThreadLocal<EntityManager>();
  
      private static EntityManagerFactory entityManagerFactory;
  
      @Produces 
      public EntityManager geraEM(){
  
          System.out.println("\n---------- injectou EntityManeger Criou ");
  
          if( entityManagerFactory == null || !entityManagerFactory.isOpen()) {
              entityManagerFactory = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT);
          }
  
          EntityManager entityManager = threadEntityManager.get();
          if(entityManager == null || !entityManager.isOpen() ) {
              entityManager = entityManagerFactory.createEntityManager();
              JpaUtil.threadEntityManager.set(entityManager);
          }
          return entityManager;
      }
  
      public void finaliza(@Disposes EntityManager entityManager) {
  
          System.out.println("\n---------- destruiu EntityManeger Criou ");
          if(entityManager!=null){
              EntityTransaction entityTransaction = entityManager.getTransaction();
              if(entityTransaction.isActive()){
                  if(entityTransaction.getRollbackOnly()) {
                      entityTransaction.rollback();
                  }else{
                      entityTransaction.commit();
                  }
              }   
              entityManager.close();
              threadEntityManager.set(null);
          }
      }
  
  }
  

• I took the test below but it returns:

  

java.lang.NullPointerException in the entityManager.getTransaction (). begin (); **

import javax.inject.Inject;
import javax.persistence.EntityManager;
import org.junit.Assert;
import org.junit.Test;

public class TesteEntityManagerFactory {

    @Inject 
    private EntityManager entityManager;

    @Test
    public void testeDeConexao(){
        entityManager.getTransaction().begin();
        Assert.assertTrue(entityManager.getTransaction().isActive() );
    }


}