maven exec plugin config

gistfile1.txt

        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.3.2</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <mainClass>com.prodigious.helios.ModelExportMain</mainClass>
                </configuration>
            </plugin>
        </plugins>