Ant+xDoclet生成hibernate配置文件

Question

<?xml version="1.0" encoding="UTF-8"?>

<property name="src.dir" value="${basedir}/src"/>
<property name="build.dir" value="${basedir}/bin"/>
<property name="webapp.dir" value="${basedir}/src/webapp"/>
<property name="xdoclet.home" value="E:\java\xdoclet-plugins-1.0.3\xdoclet-plugins-1.0.3"/>

<!-- Build classpath -->
<path id="xdoclet.task.classpath">
    <fileset dir="${xdoclet.home}/lib">
        <include name="**/*.jar"/>
    </fileset>
    <fileset dir="${xdoclet.home}/plugins">
        <include name="**/*.ajar"/>
    </fileset>
</path>
<taskdef  
    name="xdoclet"  
    classname="org.xdoclet.ant.XDocletTask"  
    classpathref="xdoclet.task.classpath"  
/> 
<target name="生成Hibernate配置文件">
    <xdoclet>
        <fileset dir="${src.dir}/com/bjc/oa.entitys">
            <include name="**/*.java"/>
        </fileset>
        <component
            classname="org.xdoclet.plugin.hibernate.HibernateConfigPlugin"
            destdir="${src.dir}"
            version="3.0"
            hbm2ddlauto="update"
            jdbcurl="jdbc:mysql://127.0.0.1:3306/oa"
            jdbcdriver="com.mysql.jdbc.Driver"
            jdbcusername="root"
            jdbcpassword="1399"
            dialect="org.hibernate.dialect.MySQLDialect"
            showsql="true"/>
    </xdoclet>
</target>
<target name="生成hibernate映射文件">
    <xdoclet>
        <fileset dir="${src.dir}/com/bjc/oa/entitys">
            <include name="**/*.java"/>
        </fileset>
        <component 
            classname="org.xdoclet.plugin.hibernate.HibernateMappingPlugin"
            version="3.0"
            destdir="${src.dir}"
        />    
    </xdoclet>
</target>

生成映射文件的时候总是提示

Buildfile: E:\java\OA\myoa02\WebContent\build.xml
生成hibernate映射文件:

BUILD FAILED
E:\java\OA\myoa02\WebContent\build.xml:42: Class Not Found: Classloader URLs (classpath):

求大神帮忙看下