NetBeans HTTP Monitor 报错的问题

安装了Netbeans以后，启动Tomcat老是会报WARNING *********** NetBeans HTTP Monitor ************ 这样的错误。 
原来是在Tomcat的web.xml中添加了一个filter，注释掉就可以了。 
记住以后用Netbeans的Http Monitor的时候要放开 


  <filter> 
    <filter-name>HTTPMonitorFilter</filter-name> 
    <filter-class>org.netbeans.modules.web.monitor.server.MonitorFilter</filter-class> 
    <init-param> 
      <param-name>netbeans.monitor.ide</param-name> 
      <param-value>localhost:8086</param-value> 
    </init-param> 
  </filter> 
  <filter-mapping> 
    <filter-name>HTTPMonitorFilter</filter-name> 
    <url-pattern>/*</url-pattern> 
    <dispatcher>REQUEST</dispatcher> 
    <dispatcher>FORWARD</dispatcher> 
    <dispatcher>INCLUDE</dispatcher> 
    <dispatcher>ERROR</dispatcher> 
  </filter-mapping>