devonfw guide

Java

Driver

PostgreSQL is fully open-source. The driver is therefore available in maven central. Your dependency for the driver should look as following:

<dependency>
    <groupId>postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>${postgresql.driver.version}</version>
</dependency>

Of course the version (${postgresql.driver.version}) needs to be adopted to your needs (PostgreSQL installtion in production and JDBC level suitable for your JDK, e.g. 9.1-901-1.jdbc4). For an overview of available driver versions see here.