pom.xml

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.mycompany.tennis</groupId>
  <artifactId>core</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
  <dependencies>
	
	<!-- mysql -->
   <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>8.0.13</version>
   </dependency>
   
   <!-- postgresql -->
   <dependency>
    	<groupId>org.postgresql</groupId>
    	<artifactId>postgresql</artifactId>
    	<version>42.7.3</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
	<dependency>
	    <groupId>org.apache.commons</groupId>
	    <artifactId>commons-dbcp2</artifactId>
	    <version>2.12.0</version>
	</dependency>

</dependencies>

</project>