Olá
Estou com esse Erro e já revisei o código mil vezes e não consigo ver onde estou errado.
 
 
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <release>11</release>
            </configuration>
        </plugin>
    </plugins>
</build>
<dependencies>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.4.27.Final</version>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>1.4.200</version>
    </dependency>
</dependencies><persistence-unit name="loja" transaction-type="RESOURCE_LOCAL">
<properties>
    <property name="javax.persistence.jbdc.driver" value="org.h2.Driver"/>
    <property name="javax.persistence.jbdc.url" value="jdbc:h2:mem:loja"/>    
    <property name="javax.persistence.jbdc.user" value="sa"/>
    <property name="javax.persistence.jbdc.password" value=""/>    
    <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>    
    <property name="hibernate.show_sql" value="true"/>    
    <property name="hibernate.hbm2ddl.auto" value="update"/>
</properties>
</persistence-unit>package br.com.alura.loja.teste;
import java.math.BigDecimal;
import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence;
import br.com.alura.loja.modelo.Produto;
public class CadastroDeProduto {
public static void main(String[] args) {
    Produto celular = new Produto();
    celular.setNome("Xiomi Redme");
    celular.setDescricao("Muito legal");
    celular.setPreco(new BigDecimal("800"));
    EntityManagerFactory factory = Persistence.createEntityManagerFactory("loja");
    EntityManager entityManager = factory.createEntityManager();
    entityManager.getTransaction().begin();
    entityManager.persist(celular);
    entityManager.getTransaction().commit();
    entityManager.close();
}}
 
            