Introduction

There are several different methods for using Scala + Maven with Eclipse.

Existing Java/Maven Project

If you have an existing java/maven project, you must do three things:

1. Install the scala eclipse plugin
2. Right click on the project. Go to the Scala Menu and select "Add Scala Nature"
3. Update your pom.xml to use the maven-scala-plugin and depend on the scala-library like in the pom shown below.

<project>
...
  <dependencies>
    <dependency>
      <groupId>org.scala-lang</groupId>
      <artifactId>scala-library</artifactId>
      <version>2.7.2</version>
    </dependency>
    ...
  </dependencies>
  ...
  <build>
    ...
    <plugins>
      ...
      <plugin>
        <groupId>org.scala-tools</groupId>
        <artifactId>maven-scala-plugin</artifactId>
        <executions>
          <execution>
            <goals>
              <goal>add-source</goal>
              <goal>compile</goal>
              <goal>testCompile</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      ...
    </plugins>
  </build>
  ...
</project>