Setting up Scala within a Java Maven project

In order to be able to start writing a Scala unit test and compile Scala code into our Java project, we need to add a few dependencies and the scala-maven-plugin to the pom.xml file. The dependencies are as follows:

• Dependency for the core scala-library:

  <dependency>
    <groupId>org.scala-lang</groupId>
    <artifactId>scala-library</artifactId>
    <version>2.10.0</version>
  </dependency>

• Dependency for scalatest (a framework for testing in Scala that supports JUnit and other styles; we will cover it in detail in Chapter 4, Testing Tools):

  <dependency>
    <groupId>org.scalatest</groupId>
    <artifactId>scalatest_2.10</artifactId>
    <version>2.0/version>
    <scope>test</scope>
  </dependency>

• Dependency for JUnit to use Java Assert statements in our test case:

  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId...