# Examples for Custom Data Flow Server Build This is an example for both gradle and maven to build a custom Data Flow Server adding MySQL driver to a build. To verify these example builds, you can run `build-and-compare` which will print differences compared to main releases server jar. If successful you should see executable jars to differ only with added mysql driver. ``` $ ./test/build-and-compare Diff gradle build 95a96 > BOOT-INF/lib/mysql-connector-java-8.0.16.jar Diff maven build 95a96 > BOOT-INF/lib/mysql-connector-java-8.0.16.jar ```