Package Spring Boot application with Unittests JDBC connections - spring-boot

Question

I'm trying to package a Spring Boot application where there are some unittests. After looking around for the last few days to find an answer I thought maybe I'd get the (probably obvious) answer here.
The command that runs is mvn package
The errors I get are:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Too many connections
2017-06-10 12:10:12.156 INFO 9822 --- [main] org.hibernate.tool.hbm2ddl.SchemaExport : HHH000230: Schema export complete
2017-06-10 12:10:12.158 WARN 9822 --- [main] o.h.j.i.EntityManagerFactoryRegistry : HHH000436: Entity manager factory name (default) is already registered. If entity manager will be clustered or passivated, specify a unique value for property 'hibernate.ejb.entitymanager_factory_name'
2017-06-10 12:10:12.158 INFO 9822 --- [main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2017-06-10 12:10:12.197 INFO 9822 --- [main] o.h.h.i.QueryTranslatorFactoryInitiator : HHH000397: Using ASTQueryTranslatorFactory
2017-06-10 12:10:12.223 INFO 9822 --- [main] o.s.ws.soap.saaj.SaajSoapMessageFactory : Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol
2017-06-10 12:10:12.359 INFO 9822 --- [main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
...
Tests in error:
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
SessionServiceTest.setUp:36 » CannotCreateTransaction Could not open JPA Entit...
IBANGeneratorTest.generateIban:50 » DataAccessResourceFailure Unable to acquir...
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 53.643 s
[INFO] Finished at: 2017-06-10T12:10:18+02:00
[INFO] Final Memory: 20M/335M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on project bank: There are test failures.
[ERROR]
[ERROR] Please refer to /home/johan/Devel/internetbankieren/bank/target/surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
I would say I have a pretty straightforward setup.
application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/bank?useSSL=false
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.username=bank
spring.datasource.password=************
spring.datasource.max-active=5
OR
spring.datasource.tomcat.max-active
spring.datasource.pool-size=20
OR
spring.datasource.tomcat.pool=20
spring.jpa.database_platform=org.hibernate.dialect.MySQL5Dialect
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=false
spring.jpa.properties.hibernate.format_sql=false
spring.datasource.testWhileIdle=true
spring.datasource.timeBetweenEvictionRunsMillis=3600000
spring.datasource.validationQuery=SELECT 1
server.port=8082
Appconfig
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
#Configuration
#ComponentScan({"com.flojo.internetbankieren"})
#PropertySource("classpath:application.properties")
#EnableConfigurationProperties(BankProperties.class)
public class AppConfig {
#Bean
public static PropertySourcesPlaceholderConfigurer getPropertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
}
Unittest
import com.flojo.internetbankieren.config.AppConfig;
import com.flojo.internetbankieren.domain.BankAccount;
import com.flojo.internetbankieren.domain.Customer;
import com.flojo.internetbankieren.domain.Session;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public class BankAccountServiceTest {
private BankAccountService bankAccountService;
private SessionService sessionService;
private CustomerService customerService;
private String ip = "123.123.132.123";
#Before
public void setUp() throws Exception {
ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
this.customerService = (CustomerService) context.getBean("customerService");
this.sessionService = (SessionService) context.getBean("sessionService");
this.bankAccountService = (BankAccountService) context.getBean("bankAccountService");
}
#Test
public void createAccount() throws Exception {
Customer customer = this.customerService.register("Johan", "Helmond", "1234");
Session session = this.sessionService.startSession(ip, "johanhelmond", "1234");
BankAccount account = this.bankAccountService.createAccount(session);
assertNotNull(account);
assertEquals(1, this.bankAccountService.getCount());
}
}
MySql max_connections
mysql> show variables like "max_connections";
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| max_connections | 151 |
+-----------------+-------+
1 row in set (0,01 sec)
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.flojo.internetbankieren</groupId>
<artifactId>bank</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.3.RELEASE</version>
<relativePath/>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.4.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</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-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.5.6-Final</version>
</dependency>
<dependency>
<groupId>wsdl4j</groupId>
<artifactId>wsdl4j</artifactId>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.12</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.3.RELEASE</version>
</plugin>
<!-- SOAP Client -->
<plugin>
<groupId>org.jvnet.jaxb2.maven2</groupId>
<artifactId>maven-jaxb2-plugin</artifactId>
<version>0.13.1</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<configuration>
<schemaLanguage>WSDL</schemaLanguage>
<generatePackage>com.flojo.internetbankieren.wsdl</generatePackage>
<!--<schemas>-->
<!--<schema>-->
<!--<!– TODO Set the correct URL to the central bank –>-->
<!--<url>http://www.webservicex.com/stockquote.asmx?WSDL</url>-->
<!--</schema>-->
<!--</schemas>-->
</configuration>
</plugin>
<!-- Soap server -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.6</version>
<executions>
<execution>
<id>xjc</id>
<goals>
<goal>xjc</goal>
</goals>
</execution>
</executions>
<configuration>
<schemaDirectory>${project.basedir}/src/main/resources/</schemaDirectory>
<outputDirectory>${project.basedir}/src/main/java</outputDirectory>
<clearOutputDir>false</clearOutputDir>
</configuration>
</plugin>
</plugins>
</build>
</project>
I really hope someone can help me out here.