<path id="retroguard.jar">
<pathelement location="E:/projects/Common2/lib/retroguard.jar"/>
</path>
<target name="hibernatedoclet"
depends="init, prepare"
description="Generate Persistence and form classes">
<taskdef
name="hibernatedoclet"
classname="org.xdoclet.ant.XDocletTask"
classpathref="class.path"
/>
<xdoclet>
<!-- defines the file handled by xdoclet2 -->
<fileset dir="${src.dir}">
<include name="/ws/ization/hb/*.java"/>
</fileset>
<!-- defines the processing of a plugin -->
<component
classname="org.xdoclet.plugin.hibernate.HibernateMappingPlugin"
destdir="${hbm.dir}"
version="3.0"
/>
</xdoclet>
</target>

I have download the jar file, but why it also tell me org.xdoclet.ant.XDocletTask can not be found ?

Thanks,

Make sure you using atleast XDoclet 1.2.3 but your better off using the 1.3.x snap shot. There is more than a single jar is necessary to get it working. See examples, eg, Appfuse uses XDoclet.