Error in Ant task

Hi all, I'm running into an issue when running the middlegen task for hibernate.

Here is my output


Buildfile: C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\build.xml

init:
        [echo] classpath=C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\aopalliance.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\c3p0-0.8.4.5.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\cglib-full-2.0.2.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\commons-collections-2.1.1.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\commons-dbcp-1.2.1.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\commons-lang-1.0.1.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\commons-logging-1.0.4.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\commons-pool-1.2.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\concurrent-1.3.3.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\connector.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\dom4j-1.4.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\ehcache-0.9.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\hibernate2.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\jdbc2_0-stdext.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\jgroups-2.2.7.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\jta.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\log4j-1.2.8.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\log4j.properties;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\odmg-3.0.jar;C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess\lib\spring.jar

middlegen:
        [echo] Class path =
C:\JAVAProjects\LASer\LASer\LASerWorkspace\DataAccess
   [middlegen] BUILD FAILED:
file:C:/JAVAProjects/LASer/LASer/LASerWorkspace/DataAccess/build.xml:75:
Could not create task of type: middlegen due to
java.lang.NoClassDefFoundError: org.apache.log4j.Category
Total time: 218 milliseconds


And here is my build.xml file

<?xml version="1.0"?>



<project name="Laser Data Acess" default="middlegen" basedir=".">


	<property name="lib.dir" value="lib" />
	<property name="dist.dir" value="dist" />
	<property name="src.dir" value="src" />
	<property name="etc.dir" value="etc"/>
	
	<property name="name" value="com.llic.dataaccess"/>
	<property name="gui" value="true"/>
	<property name="database.url" value="jdbc:db2://ludb.llic.com:50000/LASER"/>
	<property name="database.driver" value="com.ibm.db2.jcc.DB2Driver"/>
	<property name="database.userid" value="lasertst"/>
	<property name="database.password" value="lasertst"/>
	<property name="database.schema" value="LASER"/>

	<target name="init">

		<!-- creates the destination directories -->
		<mkdir dir="${compile.dir}" />
		<mkdir dir="${dist.dir}" />
		

		<!-- sets the classpath required to compile the classes -->
		<path id="classpathref">
			<fileset dir="${lib.dir}">
				<include name="*.jar" />
				<include name="*.properties"/>
			</fileset>
		</path>
		
		<pathconvert property="classpathrefprint" refid="classpathref" pathsep=";" />
	
		<echo message="classpath=${classpathrefprint}"/>
		
	</target>



 <!-- ============================================================== -->
<!-- Run Middlegen -->
<!-- ============================================================== -->

<target
   name="middlegen"
   description="Run Middlegen"
   unless="middlegen.skip"
   depends="init"
>
  <mkdir dir="${build.gen-src.dir}"/>
  <echo message="Class path = ${basedir}"/>

  <taskdef
    name="middlegen"
    classname="middlegen.MiddlegenTask"
    classpathref="classpathref"
    
  />

  <middlegen
    appname="${name}"
    prefsdir="${src.dir}"
    gui="${gui}"
    databaseurl="${database.url}"
    driver="${database.driver}"
    username="${database.userid}"
    password="${database.password}"
    schema="${database.schema}"
    catalog="${database.catalog}"
    
  >

     <!-- Plugins -->
     <hibernate
        destination="${build.gen-src.dir}"
        package="${name}.hibernate"
        javaTypeMapper="middlegen.plugins.hibernate.HibernateJavaTypeMapper"
     />

   </middlegen>
   <mkdir dir="${build.classes.dir}"/>
</target>
</project>



As you can see from the output, log4j is in my classpath.  Has anyone
encountered this before?


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