Java Hello JDO

<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.or g/maven-v4_0_0.xsd">
    <modelVersion>
        4.0.0
    </modelVersion>
    <groupId>
        com.snail.example
    </groupId>
    <artifactId>
        DataNucleuseExam
    </artifactId>
    <version>
        0.0.1-SNAPSHOT
    </version>
    <build>
        <plugins>
            <plugin>
                <artifactId>
                    maven-compiler-plugin
                </artifactId>
                <configuration>
                    <source>
                        1.5
                    </source>
                    <target>
                        1.5
                    </target>
                    <encoding>
                        UTF-8
                    </encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>
                    org.datanucleus
                </groupId>
                <artifactId>
                    maven-datanucleus-plugin
                </artifactId>
                <version>
                    2.0.1
                </version>
                <configuration>
                    <mappingIncludes>
                        **/*.jdo, **/*.class
                    </mappingIncludes>
                    <log4jConfiguration>
                        ${basedir}/log4j.properties
                    </log4jConfiguration>
                    <verbose>
                        true
                    </verbose>
                    <enhancerName>
                        ASM
                    </enhancerName>
                    <props>
                        ${basedir}/datanucleus.properties
                    </props>
                </configuration>
                <executions>
                    <execution>
                        <phase>
                            compile
                        </phase>
                        <goals>
                            <goal>
                                enhance
                            </goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>
                DataNucleus_Repos
            </id>
            <name>
                DataNucleus Repository
            </name>
            <url>
                http://www.datanucleus.org/downloads/maven
            </url>
            <layout>
                legacy
            </layout>
        </repository>
        <repository>
            <id>
                DataNucleus_Repos2
            </id>
            <name>
                DataNucleus Repository
            </name>
            <url>
                http://www.datanucleus.org/downloads/maven2
            </url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>
                DataNucleus_2
            </id>
            <url>
                http://www.datanucleus.org/downloads/maven2/
            </url>
        </pluginRepository>
    </pluginRepositories>
</project>