hibernate+dwr 报No converter found for org...CGLIBLazyInitializer

在一个ssh项目里用了dwr 报的错如下：（报错但还没影响运行 就是那一个页面响应很慢）
2009-08-04 08:56:59,843 [http-8080-2] ERROR CommonsLoggingOutput.java:75  - No converter found for 'org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer'
2009-08-04 08:57:00,015 [http-8080-2] ERROR CommonsLoggingOutput.java:75  - No converter found for 'org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer'
2009-08-04 08:57:00,015 [http-8080-2] ERROR CommonsLoggingOutput.java:75  - No converter found for 'org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer'
......还有很长就不粘贴了。

web.xml只放了关键部分

<servlet>
	    <servlet-name>dwr-invoker</servlet-name>
	    <servlet-class>uk.ltd.getahead.dwr.DWRServlet</servlet-class>
	    <init-param>
	      <param-name>debug</param-name>
	      <param-value>true</param-value>
	    </init-param>
	    <init-param>
	      <param-name>scriptCompressed</param-name>
	      <param-value>false</param-value>
	    </init-param>
	    <init-param> 
			<param-name>logLevel</param-name> 
			<param-value>DEBUG</param-value> 
		</init-param>
	    <load-on-startup>1</load-on-startup>
  	</servlet>



	  <servlet-mapping>
	    <servlet-name>dwr-invoker</servlet-name>
	    <url-pattern>/dwr/*</url-pattern>
	  </servlet-mapping>
         <filter>
		<filter-name>hibernateFilter</filter-name>
		<filter-class>
			org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
		</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>hibernateFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

dwr.xml

<convert converter="bean" match="com.taipeng.task.pojo.Task" >

<create creator="spring" javascript="taskAccess">
      <param name="beanName" value="taskService"/>
    </create>

java Service 代码

public Task checkUserHaveBifurcateRole(String taskId,String userId) {
		try{
			Task task=taskDao.getTaskById(taskId);
			User orderUser=task.getOrderUesr();
			User enchargeUser=task.getEnchargeUser();
			if( userId.equals(orderUser.getUserId()) || userId.equals(enchargeUser.getUserId())){
				return task;
			}
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return null;
	}

请指教在网上没找到解决方法
和http://topic.csdn.net/u/20090524/14/5da3f4de-35c8-45d6-bc73-c6b1cadfa120.html
很相似.