Gradescope Java+Maven Autograder Example
This example shows how to set up an autograder on Gradescope for a Java project using Maven. For the full Java example, see here. This document only describes the differences needed for Maven.
Maven is a build tool. It provides dependency resolution (only needed for JUnit and exec plugin in this project) and a way to compile and execute code (using exec plugin). It may be useful if you don't want to have to package your dependencies (though that might be a better idea for repeatability reasons), want better handling of complex build scenarios, or if you're already using Maven.
Generating a Maven project
Maven projects are defined by a pom.xml file. This file and the project structure were generated using the command
mvn archetype:generate -DgroupId=com.gradescope.intlist -DartifactId=intlist -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
Sets up JDK 8 and maven. There's a workaround for a ca-certificates issue to make sure you can install things from Maven.
mvn compile is a built in maven goal to compile the project. -q makes it quiet (i.e. not spam a bunch of debugging output).
mvn exec:java is a goal from the exec plugin for maven. It lets you specify a main class to execute (see pom.xml). This lets you avoid having to figure out the proper java command to run and classpath arguments and the like.
This is a maven project file. Briefly, it describes the project, its dependencies/plugins, Java compiler version, and main class.