Hibernate 3 + ant

C:\java\workspace\arrWeb\arrWeb\WEB-INF\build.xml:32: 3.0 is not a legal value for this attribute

<project name="arrWeb" default="deploy" basedir=".">

	<property file="build.properties" />
	<property name="tomcat.home" value="C:/java/jakarta-tomcat-5.0.28" />
	<property name="build" value="../bin" />
	<property name="src" value="../../src" />
	<property name="web" value="../" />
	<property name="deploy.dir" value="${tomcat.home}/webapps" />

	<target name="init">
		<echo message="Inicializando a contrucao do projeto..." />
		<mkdir dir="${build}" />
	</target>

	
	<target name="generate" depends="init">
		<echo message="Gerando mapeamento O/R para Hibernate..." />
		<taskdef name="hibernatedoclet"
		    classname="xdoclet.modules.hibernate.HibernateDocletTask">
		    <classpath>
		        <fileset dir="C:/java/eclipse/plugins/org.jboss.ide.eclipse.xdoclet.core_1.4.1.e31-jre15">
		            <include name="*.jar"/>
		        </fileset>
		    </classpath>
		</taskdef>
		
		<hibernatedoclet
		    destdir="${src}"
		    excludedtags="@version,@author,@todo"
		    force="${src}"
		    mergedir="${src}"
		    verbose="false">

		    <fileset dir="${src}">
		        <include name="**/*.java"/>
		    </fileset>

		    <hibernate version="2.0"/>
			
			<hibernatecfg
				driver="com.mysql.jdbc.Driver"
				jdbcUrl="jdbc:mysql://web-des/arrweb"
				username="xxxxxxxxx"
				password="xxxxxxx"
				dialect="org.hibernate.dialect.MySQLMyISAMDialect"
				showSql="true"
				poolsize="5"
				destDir="${src}"
				mergeDir="${src}"
			/>
		</hibernatedoclet>
	</target>
	
	
	<path id="classpath.dir">
		<fileset dir="lib">
			<include name="**/*.jar" />
		</fileset>
		<fileset dir="${tomcat.home}/common/lib">
			<include name="**/*.jar" />
		</fileset>
	</path>
	
	
	<target name="compile" depends="generate">
		<echo message="Compilando projeto..." />
		<javac srcdir="${src}" destdir="${build}" classpathref="classpath.dir" />
		<copy todir="${build}">
			<fileset dir="${src}">
				<exclude name="**/*.java" />
				<include name="**/*.xml" />
				<include name="**/*.properties" />
			</fileset>
		</copy>
	</target>


	<target name="undeploy">
		<delete file="${tomcat.home}/webapps/${war}.war" />
	</target>

	
	<target name="deploy" depends="undeploy,compile">
		<echo message="Montando arquivo de distribuicao..." />
		<war warfile="portal.war" webxml="../WEB-INF/web.xml">
			<lib dir="../WEB-INF/lib" />
			<classes dir="${build}" />
			<fileset dir="${web}">
				<include name="**/*.*" />
				<exclude name="**/*.java" />
				<exclude name="**/src/**/*.java" />
				<exclude name="**/build.xml" />
				<exclude name="**/*.jar" />
			</fileset>
		</war>
		
		<copy file="${war}.war" todir="${deploy.dir}" />
		<delete file="${war}.war" failonerror="false" />
	</target>

</project>