Spring Boot + Hibernate + Google Cloud Sql + App Engine

I'm having trouble setting up the connection in my application with Google Cloud Sql (using the technologies highlighted in the title). I would like to be able to allow Spring to be responsible for DataSource, EntityManagerFactory, and Transaction.

So I configured the following class and it works fine when I'm running the application locally, ie passing settings to connect to my local MySql database. However, changing the DataSource configuration to connect to Google Cloud Sql, fix the error:

Error:

  

java.lang.ClassNotFoundException: com.mysql.jdbc.GoogleDriver

Following are my files:

Configuration

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

@Configuration
@EnableTransactionManagement
public class BancoDeDadosConfig {

    @Autowired
    private DataSource dataSource;

    @Autowired
    private LocalContainerEntityManagerFactoryBean entityManagerFactory;

    @Bean
    public DataSource dataSource() throws ClassNotFoundException {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.GoogleDriver");
        dataSource.setUrl("jdbc:google:mysql://urlMeuBancoNaNuvem:us-central1:meuBanco/nomeDaDatabase");
        dataSource.setUsername("meuUsuario");
        dataSource.setPassword("minhaSenha");

        return dataSource;
    }

    /**
     * Declarando entidate manager factory do JPA
     */

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();

        entityManagerFactory.setDataSource(dataSource);

        // escaneando pacote atras de classes anotadas
        entityManagerFactory.setPackagesToScan(" ... meuPacote .. ");

        //vendor
        HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        entityManagerFactory.setJpaVendorAdapter(vendorAdapter);

        //propriedades do Hibernate
        Properties propriedades = new Properties();
        propriedades.put("hibernate.dialect", "org.hibernate.dialect.MySQL57Dialect");
        propriedades.put("hibernate.show_sql", "true");
        propriedades.put("hibernate.hbm2ddl.auto", "update");

        entityManagerFactory.setJpaProperties(propriedades);

        return entityManagerFactory;
    }

    /**
     * Transação
     */
    @Bean
    public JpaTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory.getObject());

        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }
}

appengine-web.xml

<?xml version="1.0" encoding="UTF-8"?>
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">

    <version>1</version>
    <threadsafe>true</threadsafe>
    <runtime>java8</runtime>

    <use-google-connector-j>true</use-google-connector-j>

    <system-properties>
        <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/>
    </system-properties>

</appengine-web-app>

application.properties

arquivo vazio

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.meuProjeto</groupId>
<artifactId>App</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>App</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.0.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>

    <appengine.sdk.version>1.9.63</appengine.sdk.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>

        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>com.google.appengine</groupId>
        <artifactId>appengine-api-1.0-sdk</artifactId>
        <version>${appengine.sdk.version}</version>
    </dependency>

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>jul-to-slf4j</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>6.0.6</version>
    </dependency>

    <dependency>
        <groupId>com.google.cloud.sql</groupId>
        <artifactId>mysql-socket-factory-connector-j-6</artifactId>
        <version>1.0.2</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.2.8.Final</version>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>

        <!--configuração para execução local-->
        <plugin>
            <groupId>com.google.cloud.tools</groupId>
            <artifactId>appengine-maven-plugin</artifactId>
            <version>1.3.1</version>
        </plugin>

        <!--configuração para depuração local-->
        <!--<plugin>-->
            <!--<groupId>com.google.appengine</groupId>-->
            <!--<artifactId>appengine-maven-plugin</artifactId>-->
            <!--<version>${appengine.sdk.version}</version>-->
            <!--<configuration>-->
                <!--<jvmFlags>-->
                    <!--<jvmFlag>-Xdebug</jvmFlag>-->
                    <!--<jvmFlag>-agentlib:jdwp=transport=dt_socket,address=5005,server=y,suspend=n</jvmFlag>-->
                <!--</jvmFlags>-->
            <!--</configuration>-->
        <!--</plugin>-->

    </plugins>
 </build>
</project>

Could anyone help me?