Compiling With Maven2

<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>com.mycomp.MyGroovy</groupId>
    <artifactId>MyGroovy</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>Maven Example building a Groovy project</name>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>groovy</groupId>
            <artifactId>groovy-all-1.0-jsr</artifactId>
            <version>05</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <id>compile</id>
                        <phase>compile</phase>
                        <configuration>
                            <tasks>
                                <mkdir dir="${basedir}/src/main/groovy"/>
                                <taskdef name="groovyc"
                                    classname="org.codehaus.groovy.ant.Groovyc">
                                    <classpath refid="maven.compile.classpath"/>
                                </taskdef>
                                <mkdir dir="${project.build.outputDirectory}"/>
                                <groovyc destdir="${project.build.outputDirectory}"
                                    srcdir="${basedir}/src/main/groovy/" listfiles="true">
                                    <classpath refid="maven.compile.classpath"/>
                                </groovyc>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>test-compile</id>
                        <phase>test-compile</phase>
                        <configuration>
                            <tasks>
                                <mkdir dir="${basedir}/src/test/groovy"/>
                                <taskdef name="groovyc"
                                    classname="org.codehaus.groovy.ant.Groovyc">
                                    <classpath refid="maven.compiletest.classpath"/>
                                </taskdef>
                                <mkdir dir="${project.build.testOutputDirectory}"/>
                                <groovyc destdir="${project.build.testOutputDirectory}"
                                    srcdir="${basedir}/src/test/groovy/" listfiles="true">
                                    <classpath refid="maven.test.classpath"/>
                                </groovyc>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>