build.sbt

scalaVersion := "2.10.1"

externalPom()

Foo.scala

// Put in src/test/scala
object Foo {
  // From main slf4j-api JAR
  val logger = org.slf4j.LoggerFactory.getLogger("Foo")
  // From test slf4j-api JAR
  val bp = new org.slf4j.helpers.BogoPerf
}

pom.xml

<?xml version="1.0"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>example</groupId>
  <artifactId>example</artifactId>
  <packaging>jar</packaging>
  <version>1.0.0-SNAPSHOT</version>
  <build>
    <sourceDirectory>src/main/scala</sourceDirectory>
    <testSourceDirectory>src/test/scala</testSourceDirectory>
    <plugins>
      <plugin>
        <groupId>net.alchim31.maven</groupId>
        <artifactId>scala-maven-plugin</artifactId>
        <version>3.1.0</version>
        <configuration>
          <recompileMode>incremental</recompileMode>
          <useZincServer>true</useZincServer>
          <args>
            <arg>-target:jvm-1.6</arg>
            <arg>-feature</arg>
            <arg>-deprecation</arg>
            <arg>-encoding</arg>
            <arg>UTF-8</arg>
          </args>
          <javacArgs>
            <javacArg>-source</javacArg>
            <javacArg>1.6</javacArg>
            <javacArg>-Xlint:-options</javacArg>
            <javacArg>-target</javacArg>
            <javacArg>1.6</javacArg>
          </javacArgs>
          <jvmArgs>
            <jvmArg>-Xmx768m</jvmArg>
            <jvmArg>-Xss10m</jvmArg>
          </jvmArgs>
          <scalaVersion>${scala.version}</scalaVersion>
        </configuration>
        <executions>
          <execution>
            <id>scala-compile</id>
            <goals>
              <goal>compile</goal>
              <goal>testCompile</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
      <groupId>org.scala-lang</groupId>
      <artifactId>scala-library</artifactId>
      <version>2.10.1</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.5</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.5</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>